./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c0d87e5cab4fd8cfe59229ecc351c0984abd613d260378d067ff001b545db3a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 00:57:25,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 00:57:25,690 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 00:57:25,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 00:57:25,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 00:57:25,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 00:57:25,721 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 00:57:25,721 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 00:57:25,722 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 00:57:25,722 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 00:57:25,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 00:57:25,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 00:57:25,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 00:57:25,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 00:57:25,724 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 00:57:25,725 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 00:57:25,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 00:57:25,725 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 00:57:25,726 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 00:57:25,726 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 00:57:25,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 00:57:25,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 00:57:25,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 00:57:25,731 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 00:57:25,731 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 00:57:25,732 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 00:57:25,732 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 00:57:25,732 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 00:57:25,732 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 00:57:25,733 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 00:57:25,733 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 00:57:25,733 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 00:57:25,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:57:25,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 00:57:25,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 00:57:25,734 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 00:57:25,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 00:57:25,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 00:57:25,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 00:57:25,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 00:57:25,736 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 00:57:25,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 00:57:25,737 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c0d87e5cab4fd8cfe59229ecc351c0984abd613d260378d067ff001b545db3a [2024-10-14 00:57:25,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 00:57:26,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 00:57:26,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 00:57:26,008 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 00:57:26,009 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 00:57:26,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2024-10-14 00:57:27,414 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 00:57:27,602 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 00:57:27,602 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2024-10-14 00:57:27,610 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3dd1ea1d/36d92b8c547948bab8cea8b6ac6c4ab2/FLAGcda99771b [2024-10-14 00:57:27,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3dd1ea1d/36d92b8c547948bab8cea8b6ac6c4ab2 [2024-10-14 00:57:27,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 00:57:27,626 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 00:57:27,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 00:57:27,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 00:57:27,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 00:57:27,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:27,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0b243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27, skipping insertion in model container [2024-10-14 00:57:27,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:27,656 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 00:57:27,876 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2024-10-14 00:57:27,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:57:27,890 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 00:57:27,928 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2024-10-14 00:57:27,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:57:27,946 INFO L204 MainTranslator]: Completed translation [2024-10-14 00:57:27,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27 WrapperNode [2024-10-14 00:57:27,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 00:57:27,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 00:57:27,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 00:57:27,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 00:57:27,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:27,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:27,993 INFO L138 Inliner]: procedures = 19, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 283 [2024-10-14 00:57:27,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 00:57:27,995 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 00:57:27,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 00:57:27,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 00:57:28,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:28,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:28,010 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:28,032 INFO L175 MemorySlicer]: Split 16 memory accesses to 8 slices as follows [2, 2, 2, 2, 2, 2, 2, 2]. 13 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1]. [2024-10-14 00:57:28,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:28,034 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:28,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:28,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:28,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:28,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:28,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 00:57:28,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 00:57:28,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 00:57:28,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 00:57:28,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27" (1/1) ... [2024-10-14 00:57:28,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:57:28,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:57:28,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 00:57:28,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 00:57:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 00:57:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 00:57:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 00:57:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 00:57:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 00:57:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 00:57:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-14 00:57:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-14 00:57:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-14 00:57:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 00:57:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-14 00:57:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-14 00:57:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-14 00:57:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-14 00:57:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-14 00:57:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-14 00:57:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-14 00:57:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-14 00:57:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 00:57:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 00:57:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 00:57:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 00:57:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 00:57:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-14 00:57:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-14 00:57:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-14 00:57:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-14 00:57:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-14 00:57:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-14 00:57:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-14 00:57:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-14 00:57:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-14 00:57:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-14 00:57:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-14 00:57:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 00:57:28,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 00:57:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 00:57:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 00:57:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 00:57:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 00:57:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 00:57:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-14 00:57:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-14 00:57:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-14 00:57:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 00:57:28,333 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 00:57:28,335 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 00:57:28,682 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-10-14 00:57:28,683 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 00:57:28,737 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 00:57:28,738 INFO L314 CfgBuilder]: Removed 14 assume(true) statements. [2024-10-14 00:57:28,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:57:28 BoogieIcfgContainer [2024-10-14 00:57:28,738 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 00:57:28,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 00:57:28,741 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 00:57:28,744 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 00:57:28,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:57:27" (1/3) ... [2024-10-14 00:57:28,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d43318c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:57:28, skipping insertion in model container [2024-10-14 00:57:28,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:27" (2/3) ... [2024-10-14 00:57:28,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d43318c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:57:28, skipping insertion in model container [2024-10-14 00:57:28,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:57:28" (3/3) ... [2024-10-14 00:57:28,760 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2024-10-14 00:57:28,775 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 00:57:28,775 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 00:57:28,836 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 00:57:28,842 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@64d2557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 00:57:28,842 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 00:57:28,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 65 states have (on average 1.676923076923077) internal successors, (109), 66 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:57:28,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-14 00:57:28,851 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:57:28,851 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:57:28,851 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:57:28,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:57:28,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1621110497, now seen corresponding path program 1 times [2024-10-14 00:57:28,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:57:28,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81634531] [2024-10-14 00:57:28,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:57:28,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:57:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:57:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:57:29,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:57:29,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81634531] [2024-10-14 00:57:29,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81634531] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:57:29,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:57:29,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:57:29,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621984776] [2024-10-14 00:57:29,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:57:29,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:57:29,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:57:29,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:57:29,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:57:29,061 INFO L87 Difference]: Start difference. First operand has 67 states, 65 states have (on average 1.676923076923077) internal successors, (109), 66 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:57:29,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:57:29,114 INFO L93 Difference]: Finished difference Result 133 states and 217 transitions. [2024-10-14 00:57:29,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:57:29,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-14 00:57:29,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:57:29,126 INFO L225 Difference]: With dead ends: 133 [2024-10-14 00:57:29,126 INFO L226 Difference]: Without dead ends: 64 [2024-10-14 00:57:29,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:57:29,134 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:57:29,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 00:57:29,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-14 00:57:29,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-10-14 00:57:29,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 63 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:57:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 88 transitions. [2024-10-14 00:57:29,178 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 88 transitions. Word has length 9 [2024-10-14 00:57:29,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:57:29,179 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 88 transitions. [2024-10-14 00:57:29,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:57:29,179 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 88 transitions. [2024-10-14 00:57:29,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 00:57:29,180 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:57:29,180 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:57:29,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 00:57:29,180 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:57:29,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:57:29,181 INFO L85 PathProgramCache]: Analyzing trace with hash -161377272, now seen corresponding path program 1 times [2024-10-14 00:57:29,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:57:29,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911198074] [2024-10-14 00:57:29,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:57:29,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:57:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 00:57:29,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 00:57:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 00:57:29,375 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 00:57:29,376 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 00:57:29,377 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 00:57:29,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 00:57:29,383 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-14 00:57:29,416 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 00:57:29,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:57:29 BoogieIcfgContainer [2024-10-14 00:57:29,419 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 00:57:29,420 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 00:57:29,420 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 00:57:29,420 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 00:57:29,421 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:57:28" (3/4) ... [2024-10-14 00:57:29,424 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 00:57:29,426 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 00:57:29,427 INFO L158 Benchmark]: Toolchain (without parser) took 1800.26ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 120.0MB in the beginning and 188.8MB in the end (delta: -68.9MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2024-10-14 00:57:29,428 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 137.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:57:29,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.72ms. Allocated memory is still 176.2MB. Free memory was 120.0MB in the beginning and 105.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-14 00:57:29,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.87ms. Allocated memory is still 176.2MB. Free memory was 105.3MB in the beginning and 102.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 00:57:29,431 INFO L158 Benchmark]: Boogie Preprocessor took 82.93ms. Allocated memory is still 176.2MB. Free memory was 102.7MB in the beginning and 98.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 00:57:29,431 INFO L158 Benchmark]: RCFGBuilder took 660.21ms. Allocated memory is still 176.2MB. Free memory was 98.5MB in the beginning and 142.4MB in the end (delta: -43.9MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2024-10-14 00:57:29,432 INFO L158 Benchmark]: TraceAbstraction took 679.03ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 141.7MB in the beginning and 188.8MB in the end (delta: -47.1MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2024-10-14 00:57:29,432 INFO L158 Benchmark]: Witness Printer took 5.49ms. Allocated memory is still 255.9MB. Free memory is still 188.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:57:29,434 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 137.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.72ms. Allocated memory is still 176.2MB. Free memory was 120.0MB in the beginning and 105.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.87ms. Allocated memory is still 176.2MB. Free memory was 105.3MB in the beginning and 102.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.93ms. Allocated memory is still 176.2MB. Free memory was 102.7MB in the beginning and 98.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 660.21ms. Allocated memory is still 176.2MB. Free memory was 98.5MB in the beginning and 142.4MB in the end (delta: -43.9MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. * TraceAbstraction took 679.03ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 141.7MB in the beginning and 188.8MB in the end (delta: -47.1MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. * Witness Printer took 5.49ms. Allocated memory is still 255.9MB. Free memory is still 188.8MB. 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: 176]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 147, overapproximation of someBinaryArithmeticFLOAToperation at line 119. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; [L168] float x = __VERIFIER_nondet_float(); [L170] x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, zero=0, zero_log=0] [L170] x < 0 && isfinite_float(x) [L170] CALL, EXPR isfinite_float(x) [L151] __int32_t ix; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=6442450957, zero=0, zero_log=0] [L153] ieee_float_shape_type gf_u; [L154] gf_u.value = (x) [L155] EXPR gf_u.word [L155] (ix) = gf_u.word [L157] ix &= 0x7fffffff [L158] return (((ix) < 0x7f800000L)); [L170] RET, EXPR isfinite_float(x) [L170] x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=6442450957, zero=0, zero_log=0] [L170] COND TRUE x < 0 && isfinite_float(x) [L172] CALL, EXPR __ieee754_log10f(x) [L108] float y, z; [L109] __int32_t i, k, hx; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=6442450957, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, hx=-2147483648, ivln10_log10=43429449201/100000000000, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=6442450957, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=6442450957, zero=0, zero_log=0] [L172] RET, EXPR __ieee754_log10f(x) [L172] float res = __ieee754_log10f(x); [L175] CALL, EXPR isnan_float(res) [L147] return x != x; [L175] RET, EXPR isnan_float(res) [L175] COND TRUE !isnan_float(res) [L176] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 173 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 88 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-14 00:57:29,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c0d87e5cab4fd8cfe59229ecc351c0984abd613d260378d067ff001b545db3a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 00:57:31,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 00:57:31,765 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-14 00:57:31,770 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 00:57:31,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 00:57:31,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 00:57:31,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 00:57:31,791 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 00:57:31,792 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 00:57:31,792 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 00:57:31,792 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 00:57:31,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 00:57:31,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 00:57:31,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 00:57:31,794 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 00:57:31,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 00:57:31,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 00:57:31,795 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 00:57:31,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 00:57:31,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 00:57:31,796 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 00:57:31,796 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 00:57:31,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 00:57:31,797 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 00:57:31,797 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 00:57:31,798 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 00:57:31,798 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 00:57:31,798 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 00:57:31,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 00:57:31,799 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 00:57:31,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 00:57:31,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 00:57:31,800 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 00:57:31,815 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 00:57:31,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:57:31,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 00:57:31,816 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 00:57:31,816 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 00:57:31,817 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 00:57:31,817 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 00:57:31,817 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 00:57:31,818 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 00:57:31,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 00:57:31,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 00:57:31,820 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 00:57:31,820 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c0d87e5cab4fd8cfe59229ecc351c0984abd613d260378d067ff001b545db3a [2024-10-14 00:57:32,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 00:57:32,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 00:57:32,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 00:57:32,153 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 00:57:32,154 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 00:57:32,156 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2024-10-14 00:57:33,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 00:57:33,985 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 00:57:33,987 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2024-10-14 00:57:33,999 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffbfda500/f38568bbe774422e98a7bc93898f4404/FLAGe8b8601ae [2024-10-14 00:57:34,017 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffbfda500/f38568bbe774422e98a7bc93898f4404 [2024-10-14 00:57:34,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 00:57:34,022 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 00:57:34,024 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 00:57:34,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 00:57:34,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 00:57:34,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40db9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34, skipping insertion in model container [2024-10-14 00:57:34,031 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,063 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 00:57:34,294 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2024-10-14 00:57:34,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:57:34,323 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 00:57:34,386 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2024-10-14 00:57:34,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:57:34,409 INFO L204 MainTranslator]: Completed translation [2024-10-14 00:57:34,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34 WrapperNode [2024-10-14 00:57:34,410 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 00:57:34,411 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 00:57:34,411 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 00:57:34,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 00:57:34,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,478 INFO L138 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 240 [2024-10-14 00:57:34,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 00:57:34,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 00:57:34,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 00:57:34,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 00:57:34,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,495 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,525 INFO L175 MemorySlicer]: Split 16 memory accesses to 8 slices as follows [2, 2, 2, 2, 2, 2, 2, 2]. 13 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1]. [2024-10-14 00:57:34,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,529 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 00:57:34,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 00:57:34,582 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 00:57:34,582 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 00:57:34,583 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34" (1/1) ... [2024-10-14 00:57:34,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:57:34,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:57:34,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 00:57:34,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 00:57:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 00:57:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 00:57:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-14 00:57:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-14 00:57:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-14 00:57:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-14 00:57:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-10-14 00:57:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-10-14 00:57:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-10-14 00:57:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 00:57:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-10-14 00:57:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-10-14 00:57:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-10-14 00:57:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-10-14 00:57:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-10-14 00:57:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-10-14 00:57:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-10-14 00:57:34,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-10-14 00:57:34,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-14 00:57:34,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-14 00:57:34,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-14 00:57:34,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-14 00:57:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-14 00:57:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-10-14 00:57:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-10-14 00:57:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-10-14 00:57:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 00:57:34,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 00:57:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-10-14 00:57:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-10-14 00:57:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-10-14 00:57:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-10-14 00:57:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-10-14 00:57:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-10-14 00:57:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-10-14 00:57:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-10-14 00:57:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-14 00:57:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-14 00:57:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-14 00:57:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-14 00:57:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-14 00:57:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-10-14 00:57:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-10-14 00:57:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-10-14 00:57:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 00:57:34,786 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 00:57:34,788 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 00:58:05,995 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-10-14 00:58:05,995 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 00:58:06,019 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 00:58:06,019 INFO L314 CfgBuilder]: Removed 14 assume(true) statements. [2024-10-14 00:58:06,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:58:06 BoogieIcfgContainer [2024-10-14 00:58:06,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 00:58:06,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 00:58:06,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 00:58:06,025 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 00:58:06,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:57:34" (1/3) ... [2024-10-14 00:58:06,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff98a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:58:06, skipping insertion in model container [2024-10-14 00:58:06,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:57:34" (2/3) ... [2024-10-14 00:58:06,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff98a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:58:06, skipping insertion in model container [2024-10-14 00:58:06,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:58:06" (3/3) ... [2024-10-14 00:58:06,028 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2024-10-14 00:58:06,044 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 00:58:06,044 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 00:58:06,091 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 00:58:06,097 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3e5fd17f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 00:58:06,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 00:58:06,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:58:06,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-14 00:58:06,105 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:58:06,105 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:58:06,106 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:58:06,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:58:06,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1460872651, now seen corresponding path program 1 times [2024-10-14 00:58:06,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 00:58:06,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621924964] [2024-10-14 00:58:06,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:58:06,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:58:06,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 00:58:06,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 00:58:06,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-14 00:58:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:58:06,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 00:58:06,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:58:06,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:58:06,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:58:06,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 00:58:06,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621924964] [2024-10-14 00:58:06,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [621924964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:58:06,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:58:06,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:58:06,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586456639] [2024-10-14 00:58:06,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:58:06,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 00:58:06,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 00:58:06,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 00:58:06,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:58:06,688 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:58:06,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:58:06,785 INFO L93 Difference]: Finished difference Result 92 states and 153 transitions. [2024-10-14 00:58:06,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 00:58:06,790 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-14 00:58:06,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:58:06,798 INFO L225 Difference]: With dead ends: 92 [2024-10-14 00:58:06,799 INFO L226 Difference]: Without dead ends: 44 [2024-10-14 00:58:06,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:58:06,807 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 00:58:06,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 00:58:06,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-14 00:58:06,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-10-14 00:58:06,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.372093023255814) internal successors, (59), 43 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:58:06,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2024-10-14 00:58:06,847 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 59 transitions. Word has length 9 [2024-10-14 00:58:06,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:58:06,848 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 59 transitions. [2024-10-14 00:58:06,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:58:06,849 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2024-10-14 00:58:06,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-14 00:58:06,850 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:58:06,850 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:58:06,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-10-14 00:58:07,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:58:07,056 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:58:07,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:58:07,057 INFO L85 PathProgramCache]: Analyzing trace with hash -110728072, now seen corresponding path program 1 times [2024-10-14 00:58:07,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 00:58:07,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840661064] [2024-10-14 00:58:07,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:58:07,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:58:07,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 00:58:07,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 00:58:07,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-14 00:58:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:58:07,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:58:07,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:58:07,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:58:07,624 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:58:07,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 00:58:07,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840661064] [2024-10-14 00:58:07,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840661064] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:58:07,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:58:07,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:58:07,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420414288] [2024-10-14 00:58:07,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:58:07,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:58:07,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 00:58:07,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:58:07,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:58:07,627 INFO L87 Difference]: Start difference. First operand 44 states and 59 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:58:07,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:58:07,800 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2024-10-14 00:58:07,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:58:07,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2024-10-14 00:58:07,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:58:07,801 INFO L225 Difference]: With dead ends: 83 [2024-10-14 00:58:07,802 INFO L226 Difference]: Without dead ends: 44 [2024-10-14 00:58:07,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:58:07,803 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 00:58:07,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 00:58:07,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-14 00:58:07,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-10-14 00:58:07,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:58:07,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2024-10-14 00:58:07,811 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 10 [2024-10-14 00:58:07,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:58:07,813 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2024-10-14 00:58:07,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:58:07,813 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2024-10-14 00:58:07,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 00:58:07,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:58:07,814 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:58:07,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-14 00:58:08,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:58:08,015 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:58:08,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:58:08,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1256344410, now seen corresponding path program 1 times [2024-10-14 00:58:08,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 00:58:08,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350547012] [2024-10-14 00:58:08,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:58:08,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:58:08,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 00:58:08,029 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 00:58:08,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-14 00:58:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:58:08,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 00:58:08,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:58:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:58:09,435 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:58:09,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 00:58:09,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350547012] [2024-10-14 00:58:09,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350547012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:58:09,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:58:09,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 00:58:09,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24334892] [2024-10-14 00:58:09,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:58:09,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 00:58:09,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 00:58:09,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 00:58:09,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 00:58:09,437 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:58:11,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:58:11,055 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2024-10-14 00:58:11,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 00:58:11,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2024-10-14 00:58:11,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:58:11,057 INFO L225 Difference]: With dead ends: 48 [2024-10-14 00:58:11,057 INFO L226 Difference]: Without dead ends: 15 [2024-10-14 00:58:11,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 00:58:11,058 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 00:58:11,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 24 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 00:58:11,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-10-14 00:58:11,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-10-14 00:58:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0) internal successors, (14), 14 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) [2024-10-14 00:58:11,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2024-10-14 00:58:11,061 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 13 [2024-10-14 00:58:11,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:58:11,061 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2024-10-14 00:58:11,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:58:11,061 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2024-10-14 00:58:11,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 00:58:11,062 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:58:11,062 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:58:11,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-14 00:58:11,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:58:11,263 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:58:11,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:58:11,263 INFO L85 PathProgramCache]: Analyzing trace with hash 289125685, now seen corresponding path program 1 times [2024-10-14 00:58:11,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 00:58:11,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852284112] [2024-10-14 00:58:11,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:58:11,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:58:11,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 00:58:11,267 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 00:58:11,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-14 00:58:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:58:11,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 00:58:11,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:58:12,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:58:12,744 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:58:12,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 00:58:12,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852284112] [2024-10-14 00:58:12,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852284112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:58:12,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:58:12,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 00:58:12,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228789340] [2024-10-14 00:58:12,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:58:12,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 00:58:12,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 00:58:12,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 00:58:12,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 00:58:12,746 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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) [2024-10-14 00:58:13,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:58:13,477 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2024-10-14 00:58:13,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 00:58:13,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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 [2024-10-14 00:58:13,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:58:13,478 INFO L225 Difference]: With dead ends: 15 [2024-10-14 00:58:13,478 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 00:58:13,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 00:58:13,479 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 00:58:13,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 23 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 00:58:13,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 00:58:13,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 00:58:13,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:58:13,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 00:58:13,480 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-10-14 00:58:13,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:58:13,481 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 00:58:13,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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) [2024-10-14 00:58:13,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 00:58:13,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 00:58:13,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 00:58:13,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-14 00:58:13,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:58:13,687 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-14 00:58:13,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-14 00:58:13,935 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 00:58:13,958 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-14 00:58:13,960 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-14 00:58:13,960 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-14 00:58:13,960 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-14 00:58:13,963 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-14 00:58:13,966 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-14 00:58:13,966 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-14 00:58:13,966 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-14 00:58:13,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:58:13 BoogieIcfgContainer [2024-10-14 00:58:13,968 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 00:58:13,968 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 00:58:13,968 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 00:58:13,968 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 00:58:13,969 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:58:06" (3/4) ... [2024-10-14 00:58:13,975 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 00:58:14,009 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-14 00:58:14,011 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-14 00:58:14,012 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 00:58:14,012 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 00:58:14,130 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 00:58:14,131 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 00:58:14,131 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 00:58:14,132 INFO L158 Benchmark]: Toolchain (without parser) took 40109.62ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 43.5MB in the beginning and 58.5MB in the end (delta: -15.0MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-10-14 00:58:14,132 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 41.9MB. Free memory was 25.4MB in the beginning and 25.3MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:58:14,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.72ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 45.6MB in the end (delta: -2.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-14 00:58:14,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.74ms. Allocated memory is still 67.1MB. Free memory was 45.6MB in the beginning and 43.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 00:58:14,133 INFO L158 Benchmark]: Boogie Preprocessor took 99.44ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 39.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 00:58:14,133 INFO L158 Benchmark]: RCFGBuilder took 31438.66ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 39.1MB in the beginning and 53.5MB in the end (delta: -14.4MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2024-10-14 00:58:14,133 INFO L158 Benchmark]: TraceAbstraction took 7945.73ms. Allocated memory is still 90.2MB. Free memory was 52.8MB in the beginning and 64.8MB in the end (delta: -11.9MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2024-10-14 00:58:14,134 INFO L158 Benchmark]: Witness Printer took 163.05ms. Allocated memory is still 90.2MB. Free memory was 64.8MB in the beginning and 58.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-14 00:58:14,135 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 41.9MB. Free memory was 25.4MB in the beginning and 25.3MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.72ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 45.6MB in the end (delta: -2.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.74ms. Allocated memory is still 67.1MB. Free memory was 45.6MB in the beginning and 43.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.44ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 39.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 31438.66ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 39.1MB in the beginning and 53.5MB in the end (delta: -14.4MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7945.73ms. Allocated memory is still 90.2MB. Free memory was 52.8MB in the beginning and 64.8MB in the end (delta: -11.9MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * Witness Printer took 163.05ms. Allocated memory is still 90.2MB. Free memory was 64.8MB in the beginning and 58.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 176]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 215 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 129 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 10 QuantifiedInterpolants, 212 SizeOfPredicates, 5 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-10-14 00:58:14,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE