./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1210.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 72a09b82a82aabea0c4a084a3d99a9a83ff3f66f3965fc10414482ebb802703c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 18:21:52,516 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 18:21:52,605 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 18:21:52,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 18:21:52,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 18:21:52,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 18:21:52,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 18:21:52,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 18:21:52,655 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 18:21:52,657 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 18:21:52,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 18:21:52,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 18:21:52,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 18:21:52,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 18:21:52,661 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 18:21:52,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 18:21:52,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 18:21:52,662 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 18:21:52,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 18:21:52,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 18:21:52,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 18:21:52,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 18:21:52,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 18:21:52,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 18:21:52,666 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 18:21:52,666 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 18:21:52,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 18:21:52,667 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 18:21:52,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 18:21:52,668 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 18:21:52,668 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 18:21:52,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 18:21:52,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:21:52,669 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 18:21:52,669 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 18:21:52,669 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 18:21:52,670 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 18:21:52,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 18:21:52,671 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 18:21:52,671 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 18:21:52,672 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 18:21:52,672 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 18:21:52,672 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72a09b82a82aabea0c4a084a3d99a9a83ff3f66f3965fc10414482ebb802703c [2024-11-11 18:21:52,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 18:21:52,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 18:21:52,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 18:21:52,989 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 18:21:52,989 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 18:21:52,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2024-11-11 18:21:54,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 18:21:54,789 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 18:21:54,789 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2024-11-11 18:21:54,797 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acabca056/e0ab1462ba7a40c9882b82feceee77c6/FLAG9947a8d77 [2024-11-11 18:21:54,813 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acabca056/e0ab1462ba7a40c9882b82feceee77c6 [2024-11-11 18:21:54,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 18:21:54,817 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 18:21:54,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 18:21:54,818 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 18:21:54,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 18:21:54,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:21:54" (1/1) ... [2024-11-11 18:21:54,826 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be2948c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:54, skipping insertion in model container [2024-11-11 18:21:54,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:21:54" (1/1) ... [2024-11-11 18:21:54,853 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 18:21:55,065 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2024-11-11 18:21:55,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:21:55,088 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 18:21:55,124 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2024-11-11 18:21:55,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:21:55,149 INFO L204 MainTranslator]: Completed translation [2024-11-11 18:21:55,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55 WrapperNode [2024-11-11 18:21:55,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 18:21:55,153 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 18:21:55,153 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 18:21:55,153 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 18:21:55,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55" (1/1) ... [2024-11-11 18:21:55,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55" (1/1) ... [2024-11-11 18:21:55,201 INFO L138 Inliner]: procedures = 16, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 177 [2024-11-11 18:21:55,205 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 18:21:55,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 18:21:55,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 18:21:55,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 18:21:55,217 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55" (1/1) ... [2024-11-11 18:21:55,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55" (1/1) ... [2024-11-11 18:21:55,220 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55" (1/1) ... [2024-11-11 18:21:55,241 INFO L175 MemorySlicer]: Split 22 memory accesses to 9 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 6]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0]. The 11 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 4]. [2024-11-11 18:21:55,241 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55" (1/1) ... [2024-11-11 18:21:55,242 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55" (1/1) ... [2024-11-11 18:21:55,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55" (1/1) ... [2024-11-11 18:21:55,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55" (1/1) ... [2024-11-11 18:21:55,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55" (1/1) ... [2024-11-11 18:21:55,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55" (1/1) ... [2024-11-11 18:21:55,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 18:21:55,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 18:21:55,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 18:21:55,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 18:21:55,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55" (1/1) ... [2024-11-11 18:21:55,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:21:55,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 18:21:55,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 18:21:55,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 18:21:55,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 18:21:55,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 18:21:55,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 18:21:55,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 18:21:55,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 18:21:55,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-11 18:21:55,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-11 18:21:55,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-11 18:21:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-11 18:21:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-11 18:21:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 18:21:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2024-11-11 18:21:55,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2024-11-11 18:21:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-11 18:21:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-11 18:21:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-11 18:21:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-11 18:21:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-11 18:21:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-11 18:21:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-11 18:21:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-11 18:21:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-11 18:21:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-11 18:21:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-11 18:21:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-11 18:21:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-11 18:21:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-11 18:21:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-11 18:21:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-11 18:21:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-11 18:21:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-11 18:21:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-11 18:21:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-11 18:21:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-11 18:21:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-11 18:21:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-11 18:21:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-11 18:21:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-11 18:21:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-11 18:21:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-11 18:21:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 18:21:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 18:21:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-11 18:21:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-11 18:21:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-11 18:21:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-11 18:21:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-11 18:21:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-11 18:21:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-11 18:21:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-11 18:21:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-11 18:21:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 18:21:55,498 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 18:21:55,500 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 18:21:55,792 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-11 18:21:55,793 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 18:21:55,814 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 18:21:55,814 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-11 18:21:55,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:21:55 BoogieIcfgContainer [2024-11-11 18:21:55,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 18:21:55,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 18:21:55,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 18:21:55,826 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 18:21:55,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:21:54" (1/3) ... [2024-11-11 18:21:55,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eba4736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:21:55, skipping insertion in model container [2024-11-11 18:21:55,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:55" (2/3) ... [2024-11-11 18:21:55,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eba4736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:21:55, skipping insertion in model container [2024-11-11 18:21:55,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:21:55" (3/3) ... [2024-11-11 18:21:55,830 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2024-11-11 18:21:55,853 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 18:21:55,853 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 18:21:55,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 18:21:55,924 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;@b34ab31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 18:21:55,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 18:21:55,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 45 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 18:21:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-11 18:21:55,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:21:55,941 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:21:55,942 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:21:55,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:21:55,950 INFO L85 PathProgramCache]: Analyzing trace with hash -512575325, now seen corresponding path program 1 times [2024-11-11 18:21:55,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 18:21:55,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74688382] [2024-11-11 18:21:55,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:21:55,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 18:21:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:21:56,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 18:21:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:21:56,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:21:56,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 18:21:56,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74688382] [2024-11-11 18:21:56,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74688382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:21:56,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:21:56,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 18:21:56,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121261097] [2024-11-11 18:21:56,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:21:56,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 18:21:56,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 18:21:56,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 18:21:56,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:21:56,235 INFO L87 Difference]: Start difference. First operand has 49 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 45 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 18:21:56,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:21:56,264 INFO L93 Difference]: Finished difference Result 96 states and 144 transitions. [2024-11-11 18:21:56,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 18:21:56,266 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-11 18:21:56,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:21:56,274 INFO L225 Difference]: With dead ends: 96 [2024-11-11 18:21:56,275 INFO L226 Difference]: Without dead ends: 46 [2024-11-11 18:21:56,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:21:56,283 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 18:21:56,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 18:21:56,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-11 18:21:56,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-11 18:21:56,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 42 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 18:21:56,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2024-11-11 18:21:56,335 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 17 [2024-11-11 18:21:56,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:21:56,337 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2024-11-11 18:21:56,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 18:21:56,338 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2024-11-11 18:21:56,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-11 18:21:56,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:21:56,341 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:21:56,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 18:21:56,342 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:21:56,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:21:56,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1525775298, now seen corresponding path program 1 times [2024-11-11 18:21:56,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 18:21:56,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356772610] [2024-11-11 18:21:56,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:21:56,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 18:21:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:21:56,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 18:21:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:21:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:21:56,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 18:21:56,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356772610] [2024-11-11 18:21:56,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356772610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:21:56,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:21:56,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 18:21:56,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860332106] [2024-11-11 18:21:56,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:21:56,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 18:21:56,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 18:21:56,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 18:21:56,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 18:21:56,553 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 18:21:56,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:21:56,579 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2024-11-11 18:21:56,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 18:21:56,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-11 18:21:56,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:21:56,581 INFO L225 Difference]: With dead ends: 49 [2024-11-11 18:21:56,581 INFO L226 Difference]: Without dead ends: 46 [2024-11-11 18:21:56,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 18:21:56,583 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 18:21:56,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 18:21:56,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-11 18:21:56,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-11 18:21:56,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 42 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 18:21:56,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2024-11-11 18:21:56,598 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 19 [2024-11-11 18:21:56,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:21:56,599 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2024-11-11 18:21:56,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 18:21:56,600 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2024-11-11 18:21:56,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-11 18:21:56,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:21:56,602 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:21:56,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 18:21:56,602 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:21:56,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:21:56,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1814387160, now seen corresponding path program 1 times [2024-11-11 18:21:56,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 18:21:56,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3533922] [2024-11-11 18:21:56,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:21:56,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 18:21:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:21:56,690 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-11 18:21:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:21:56,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-11 18:21:56,768 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-11 18:21:56,770 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 18:21:56,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 18:21:56,775 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-11 18:21:56,802 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 18:21:56,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:21:56 BoogieIcfgContainer [2024-11-11 18:21:56,806 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 18:21:56,807 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 18:21:56,807 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 18:21:56,807 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 18:21:56,809 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:21:55" (3/4) ... [2024-11-11 18:21:56,811 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-11 18:21:56,813 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 18:21:56,814 INFO L158 Benchmark]: Toolchain (without parser) took 1997.48ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 95.8MB in the beginning and 120.1MB in the end (delta: -24.4MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-11-11 18:21:56,815 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 153.1MB. Free memory is still 114.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:21:56,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.91ms. Allocated memory is still 153.1MB. Free memory was 95.8MB in the beginning and 82.4MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-11 18:21:56,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.53ms. Allocated memory is still 153.1MB. Free memory was 82.4MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 18:21:56,820 INFO L158 Benchmark]: Boogie Preprocessor took 72.55ms. Allocated memory is still 153.1MB. Free memory was 80.2MB in the beginning and 77.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-11 18:21:56,820 INFO L158 Benchmark]: RCFGBuilder took 540.04ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 76.9MB in the beginning and 166.3MB in the end (delta: -89.4MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2024-11-11 18:21:56,821 INFO L158 Benchmark]: TraceAbstraction took 984.00ms. Allocated memory is still 199.2MB. Free memory was 166.3MB in the beginning and 120.1MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-11-11 18:21:56,821 INFO L158 Benchmark]: Witness Printer took 6.97ms. Allocated memory is still 199.2MB. Free memory is still 120.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:21:56,823 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 153.1MB. Free memory is still 114.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.91ms. Allocated memory is still 153.1MB. Free memory was 95.8MB in the beginning and 82.4MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.53ms. Allocated memory is still 153.1MB. Free memory was 82.4MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.55ms. Allocated memory is still 153.1MB. Free memory was 80.2MB in the beginning and 77.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 540.04ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 76.9MB in the beginning and 166.3MB in the end (delta: -89.4MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * TraceAbstraction took 984.00ms. Allocated memory is still 199.2MB. Free memory was 166.3MB in the beginning and 120.1MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 6.97ms. Allocated memory is still 199.2MB. Free memory is still 120.1MB. 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: 88]: 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 75, overapproximation of someBinaryArithmeticFLOAToperation at line 82. Possible FailurePath: [L13] static const float one_modf = 1.0; VAL [one_modf=1] [L82] float x = 0.0f / 0.0f; [L83] float iptr; [L84] CALL, EXPR modf_float(x, &iptr) [L16] __int32_t i0, j0; [L17] __uint32_t i; VAL [iptr={6:0}, one_modf=1, x=2147483666] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [i0=-2147483648, iptr={6:0}, j0=-127, one_modf=1, x=2147483666] [L24] COND TRUE j0 < 23 VAL [one_modf=1] [L25] COND TRUE j0 < 0 VAL [one_modf=1] [L27] ieee_float_shape_type sf_u; [L28] sf_u.word = (i0 & 0x80000000) [L29] EXPR sf_u.value [L29] (*iptr) = sf_u.value [L31] return x; VAL [\result=2147483666, i0=-2147483648, iptr={6:0}, one_modf=1] [L84] RET, EXPR modf_float(x, &iptr) [L84] float res = modf_float(x, &iptr); [L87] EXPR \read(iptr) VAL [one_modf=1] [L87] CALL, EXPR isnan_float(iptr) VAL [\old(x)=2147483667, one_modf=1] [L75] return x != x; VAL [\old(x)=2147483667, \result=1, one_modf=1] [L87] RET, EXPR isnan_float(iptr) VAL [one_modf=1, res=2147483666] [L87] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1, res=2147483666] [L87] CALL, EXPR isnan_float(res) VAL [\old(x)=2147483666, one_modf=1] [L75] return x != x; VAL [\old(x)=2147483666, \result=0, one_modf=1] [L87] RET, EXPR isnan_float(res) VAL [one_modf=1, res=2147483666] [L87] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1, res=2147483666] [L87] COND TRUE isnan_float(iptr) && !isnan_float(res) [L88] reach_error() VAL [one_modf=1, res=2147483666] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 2, 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, 162 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 113 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 35 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-11 18:21:56,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1210.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 72a09b82a82aabea0c4a084a3d99a9a83ff3f66f3965fc10414482ebb802703c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 18:21:59,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 18:21:59,392 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-11 18:21:59,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 18:21:59,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 18:21:59,436 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 18:21:59,441 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 18:21:59,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 18:21:59,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 18:21:59,443 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 18:21:59,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 18:21:59,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 18:21:59,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 18:21:59,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 18:21:59,449 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 18:21:59,449 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 18:21:59,450 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 18:21:59,450 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 18:21:59,450 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 18:21:59,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 18:21:59,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 18:21:59,455 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 18:21:59,455 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 18:21:59,456 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-11 18:21:59,456 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-11 18:21:59,456 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 18:21:59,456 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-11 18:21:59,456 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 18:21:59,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 18:21:59,457 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 18:21:59,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 18:21:59,457 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 18:21:59,458 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 18:21:59,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 18:21:59,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:21:59,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 18:21:59,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 18:21:59,461 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 18:21:59,461 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-11 18:21:59,461 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-11 18:21:59,462 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 18:21:59,462 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 18:21:59,463 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 18:21:59,463 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 18:21:59,463 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72a09b82a82aabea0c4a084a3d99a9a83ff3f66f3965fc10414482ebb802703c [2024-11-11 18:21:59,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 18:21:59,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 18:21:59,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 18:21:59,869 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 18:21:59,869 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 18:21:59,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2024-11-11 18:22:01,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 18:22:01,855 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 18:22:01,856 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2024-11-11 18:22:01,863 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e899990/0b3198cfecb64b67a06e14063a4ef3d2/FLAGc489e1794 [2024-11-11 18:22:02,215 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e899990/0b3198cfecb64b67a06e14063a4ef3d2 [2024-11-11 18:22:02,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 18:22:02,219 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 18:22:02,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:02,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 18:22:02,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 18:22:02,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c19cdd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02, skipping insertion in model container [2024-11-11 18:22:02,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,255 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 18:22:02,494 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2024-11-11 18:22:02,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:02,523 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 18:22:02,563 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2024-11-11 18:22:02,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:02,596 INFO L204 MainTranslator]: Completed translation [2024-11-11 18:22:02,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02 WrapperNode [2024-11-11 18:22:02,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:02,599 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:02,600 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 18:22:02,600 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 18:22:02,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,658 INFO L138 Inliner]: procedures = 19, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 153 [2024-11-11 18:22:02,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:02,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 18:22:02,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 18:22:02,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 18:22:02,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,679 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,705 INFO L175 MemorySlicer]: Split 22 memory accesses to 9 slices as follows [2, 2, 2, 6, 2, 2, 2, 2, 2]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0]. The 11 writes are split as follows [0, 1, 1, 4, 1, 1, 1, 1, 1]. [2024-11-11 18:22:02,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,708 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 18:22:02,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 18:22:02,739 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 18:22:02,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 18:22:02,740 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02" (1/1) ... [2024-11-11 18:22:02,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:22:02,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 18:22:02,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 18:22:02,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 18:22:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 18:22:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-11 18:22:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-11 18:22:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-11 18:22:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-11 18:22:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-11 18:22:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-11 18:22:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-11 18:22:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-11 18:22:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-11 18:22:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 18:22:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-11 18:22:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-11 18:22:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-11 18:22:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-11 18:22:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-11 18:22:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-11 18:22:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-11 18:22:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-11 18:22:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-11 18:22:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2024-11-11 18:22:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2024-11-11 18:22:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-11 18:22:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-11 18:22:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-11 18:22:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-11 18:22:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-11 18:22:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-11 18:22:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-11 18:22:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-11 18:22:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-11 18:22:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 18:22:02,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 18:22:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-11 18:22:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-11 18:22:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-11 18:22:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-11 18:22:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-11 18:22:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-11 18:22:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-11 18:22:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-11 18:22:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-11 18:22:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-11 18:22:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-11 18:22:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-11 18:22:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-11 18:22:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-11 18:22:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-11 18:22:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-11 18:22:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-11 18:22:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-11 18:22:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 18:22:02,999 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 18:22:03,002 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 18:22:03,357 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-11 18:22:03,359 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 18:22:03,374 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 18:22:03,377 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-11 18:22:03,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:03 BoogieIcfgContainer [2024-11-11 18:22:03,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 18:22:03,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 18:22:03,380 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 18:22:03,384 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 18:22:03,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:22:02" (1/3) ... [2024-11-11 18:22:03,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507a0b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:03, skipping insertion in model container [2024-11-11 18:22:03,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:02" (2/3) ... [2024-11-11 18:22:03,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507a0b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:03, skipping insertion in model container [2024-11-11 18:22:03,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:03" (3/3) ... [2024-11-11 18:22:03,387 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2024-11-11 18:22:03,405 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 18:22:03,405 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 18:22:03,461 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 18:22:03,467 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;@5fc2df14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 18:22:03,468 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 18:22:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 34 states have (on average 1.588235294117647) internal successors, (54), 35 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 18:22:03,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-11 18:22:03,480 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:03,480 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:03,481 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:03,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:03,487 INFO L85 PathProgramCache]: Analyzing trace with hash -218345182, now seen corresponding path program 1 times [2024-11-11 18:22:03,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:22:03,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648876593] [2024-11-11 18:22:03,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:03,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:03,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:22:03,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-11 18:22:03,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-11 18:22:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:03,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-11 18:22:03,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:22:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:22:03,742 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:22:03,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:22:03,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648876593] [2024-11-11 18:22:03,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648876593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:03,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:03,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 18:22:03,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557232039] [2024-11-11 18:22:03,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:03,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 18:22:03,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:22:03,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 18:22:03,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:22:03,780 INFO L87 Difference]: Start difference. First operand has 39 states, 34 states have (on average 1.588235294117647) internal successors, (54), 35 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 18:22:03,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:22:03,802 INFO L93 Difference]: Finished difference Result 76 states and 114 transitions. [2024-11-11 18:22:03,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 18:22:03,805 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-11 18:22:03,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:22:03,811 INFO L225 Difference]: With dead ends: 76 [2024-11-11 18:22:03,813 INFO L226 Difference]: Without dead ends: 36 [2024-11-11 18:22:03,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:22:03,820 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 18:22:03,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 18:22:03,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-11 18:22:03,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-11 18:22:03,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 18:22:03,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2024-11-11 18:22:03,863 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 17 [2024-11-11 18:22:03,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:22:03,863 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2024-11-11 18:22:03,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 18:22:03,864 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2024-11-11 18:22:03,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-11 18:22:03,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:03,866 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:03,874 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-11 18:22:04,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:04,072 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:04,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:04,073 INFO L85 PathProgramCache]: Analyzing trace with hash -667427839, now seen corresponding path program 1 times [2024-11-11 18:22:04,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:22:04,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099509006] [2024-11-11 18:22:04,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:04,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:04,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:22:04,081 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-11 18:22:04,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-11 18:22:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:04,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-11 18:22:04,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:22:04,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:22:04,473 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:22:04,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:22:04,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099509006] [2024-11-11 18:22:04,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099509006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:04,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:04,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 18:22:04,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598612309] [2024-11-11 18:22:04,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:04,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 18:22:04,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:22:04,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 18:22:04,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 18:22:04,477 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 18:22:05,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:22:05,151 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2024-11-11 18:22:05,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 18:22:05,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-11 18:22:05,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:22:05,154 INFO L225 Difference]: With dead ends: 48 [2024-11-11 18:22:05,155 INFO L226 Difference]: Without dead ends: 23 [2024-11-11 18:22:05,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 18:22:05,158 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 13 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 18:22:05,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 65 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 18:22:05,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-11 18:22:05,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-11 18:22:05,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 18:22:05,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-11-11 18:22:05,167 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 19 [2024-11-11 18:22:05,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:22:05,167 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-11-11 18:22:05,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 18:22:05,168 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-11-11 18:22:05,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-11 18:22:05,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:05,169 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:05,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-11 18:22:05,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:05,370 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:05,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:05,371 INFO L85 PathProgramCache]: Analyzing trace with hash 971993530, now seen corresponding path program 1 times [2024-11-11 18:22:05,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:22:05,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256239905] [2024-11-11 18:22:05,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:05,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:05,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:22:05,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-11 18:22:05,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-11 18:22:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:05,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 18:22:05,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:22:05,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:22:05,545 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:22:05,546 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:22:05,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256239905] [2024-11-11 18:22:05,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256239905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:05,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:05,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 18:22:05,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786834043] [2024-11-11 18:22:05,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:05,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 18:22:05,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:22:05,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 18:22:05,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 18:22:05,551 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 18:22:05,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:22:05,578 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2024-11-11 18:22:05,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 18:22:05,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-11-11 18:22:05,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:22:05,580 INFO L225 Difference]: With dead ends: 26 [2024-11-11 18:22:05,580 INFO L226 Difference]: Without dead ends: 23 [2024-11-11 18:22:05,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 18:22:05,582 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 18:22:05,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 18:22:05,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-11 18:22:05,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-11 18:22:05,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 18:22:05,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2024-11-11 18:22:05,591 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 20 [2024-11-11 18:22:05,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:22:05,593 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2024-11-11 18:22:05,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 18:22:05,593 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2024-11-11 18:22:05,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-11 18:22:05,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:05,595 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:05,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-11 18:22:05,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:05,796 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:05,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:05,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1443547935, now seen corresponding path program 1 times [2024-11-11 18:22:05,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:22:05,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787985078] [2024-11-11 18:22:05,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:05,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:05,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:22:05,799 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-11 18:22:05,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-11 18:22:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:22:06,016 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-11 18:22:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:22:06,189 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-11 18:22:06,189 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-11 18:22:06,190 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 18:22:06,208 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 (5)] Forceful destruction successful, exit code 0 [2024-11-11 18:22:06,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:06,402 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-11 18:22:06,452 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 18:22:06,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:22:06 BoogieIcfgContainer [2024-11-11 18:22:06,459 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 18:22:06,460 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 18:22:06,460 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 18:22:06,460 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 18:22:06,461 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:03" (3/4) ... [2024-11-11 18:22:06,462 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-11 18:22:06,517 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-11 18:22:06,517 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 18:22:06,518 INFO L158 Benchmark]: Toolchain (without parser) took 4299.07ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 58.7MB in the beginning and 56.2MB in the end (delta: 2.5MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2024-11-11 18:22:06,518 INFO L158 Benchmark]: CDTParser took 1.26ms. Allocated memory is still 56.6MB. Free memory is still 28.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:22:06,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.79ms. Allocated memory is still 81.8MB. Free memory was 58.7MB in the beginning and 44.2MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-11 18:22:06,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.10ms. Allocated memory is still 81.8MB. Free memory was 44.2MB in the beginning and 42.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 18:22:06,518 INFO L158 Benchmark]: Boogie Preprocessor took 74.68ms. Allocated memory is still 81.8MB. Free memory was 42.2MB in the beginning and 38.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 18:22:06,519 INFO L158 Benchmark]: RCFGBuilder took 638.99ms. Allocated memory is still 81.8MB. Free memory was 38.8MB in the beginning and 43.5MB in the end (delta: -4.6MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2024-11-11 18:22:06,519 INFO L158 Benchmark]: TraceAbstraction took 3078.78ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 43.1MB in the beginning and 59.0MB in the end (delta: -15.9MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-11-11 18:22:06,519 INFO L158 Benchmark]: Witness Printer took 57.40ms. Allocated memory is still 113.2MB. Free memory was 59.0MB in the beginning and 56.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 18:22:06,522 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26ms. Allocated memory is still 56.6MB. Free memory is still 28.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.79ms. Allocated memory is still 81.8MB. Free memory was 58.7MB in the beginning and 44.2MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.10ms. Allocated memory is still 81.8MB. Free memory was 44.2MB in the beginning and 42.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.68ms. Allocated memory is still 81.8MB. Free memory was 42.2MB in the beginning and 38.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 638.99ms. Allocated memory is still 81.8MB. Free memory was 38.8MB in the beginning and 43.5MB in the end (delta: -4.6MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3078.78ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 43.1MB in the beginning and 59.0MB in the end (delta: -15.9MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * Witness Printer took 57.40ms. Allocated memory is still 113.2MB. Free memory was 59.0MB in the beginning and 56.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 88]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L13] static const float one_modf = 1.0; VAL [one_modf=1.0] [L82] float x = 0.0f / 0.0f; [L83] float iptr; [L84] CALL, EXPR modf_float(x, &iptr) [L16] __int32_t i0, j0; [L17] __uint32_t i; VAL [iptr={-2147483645:0}, one_modf=1.0, x=NaN] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [i0=2143289344, iptr={-2147483645:0}, j0=128, one_modf=1.0, x=NaN] [L24] COND FALSE !(j0 < 23) [L58] __uint32_t ix; [L59] *iptr = x * one_modf VAL [one_modf=1.0] [L61] ieee_float_shape_type gf_u; [L62] gf_u.value = (x) [L63] EXPR gf_u.word [L63] (ix) = gf_u.word [L66] ieee_float_shape_type sf_u; [L67] sf_u.word = (ix & 0x80000000) [L68] EXPR sf_u.value [L68] (x) = sf_u.value [L70] return x; VAL [\result=0.0, i0=2143289344, ix=2143289344, one_modf=1.0] [L84] RET, EXPR modf_float(x, &iptr) [L84] float res = modf_float(x, &iptr); [L87] EXPR \read(iptr) VAL [one_modf=1.0] [L87] CALL, EXPR isnan_float(iptr) VAL [\old(x)=NaN, one_modf=1.0] [L75] return x != x; VAL [\old(x)=NaN, \result=1, one_modf=1.0] [L87] RET, EXPR isnan_float(iptr) VAL [one_modf=1.0, res=0.0] [L87] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1.0, res=0.0] [L87] CALL, EXPR isnan_float(res) VAL [\old(x)=0.0, one_modf=1.0] [L75] return x != x; VAL [\old(x)=0.0, \result=0, one_modf=1.0] [L87] RET, EXPR isnan_float(res) VAL [one_modf=1.0, res=0.0] [L87] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1.0, res=0.0] [L87] COND TRUE isnan_float(iptr) && !isnan_float(res) [L88] reach_error() VAL [one_modf=1.0, res=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 150 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 63 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 87 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 53 ConstructedInterpolants, 4 QuantifiedInterpolants, 107 SizeOfPredicates, 5 NumberOfNonLiveVariables, 213 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 proved your program to be incorrect! [2024-11-11 18:22:06,562 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE