./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0682a.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 77640868601be41246aa819b7e4e87995230298ea897561367d6e56014f366ff --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:16:32,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:16:32,477 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 17:16:32,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:16:32,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:16:32,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:16:32,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:16:32,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:16:32,503 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:16:32,504 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:16:32,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:16:32,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:16:32,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:16:32,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:16:32,508 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:16:32,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:16:32,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:16:32,509 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:16:32,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 17:16:32,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:16:32,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:16:32,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:16:32,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:16:32,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:16:32,514 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:16:32,514 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:16:32,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:16:32,514 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:16:32,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:16:32,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:16:32,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:16:32,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:16:32,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:16:32,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:16:32,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:16:32,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:16:32,517 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 17:16:32,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 17:16:32,517 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:16:32,518 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:16:32,518 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:16:32,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:16:32,518 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77640868601be41246aa819b7e4e87995230298ea897561367d6e56014f366ff [2024-10-12 17:16:32,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:16:32,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:16:32,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:16:32,745 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:16:32,746 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:16:32,747 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2024-10-12 17:16:33,977 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:16:34,170 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:16:34,171 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2024-10-12 17:16:34,178 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ac48dfd2/45c4df6ec1454af886d8735ed2f7ec75/FLAGc2891b7d4 [2024-10-12 17:16:34,552 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ac48dfd2/45c4df6ec1454af886d8735ed2f7ec75 [2024-10-12 17:16:34,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:16:34,555 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:16:34,556 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:16:34,557 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:16:34,561 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:16:34,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:34,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ee3a04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34, skipping insertion in model container [2024-10-12 17:16:34,562 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:34,592 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:16:34,780 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c[6875,6888] [2024-10-12 17:16:34,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:16:34,795 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 17:16:34,875 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c[6875,6888] [2024-10-12 17:16:34,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:16:34,919 INFO L204 MainTranslator]: Completed translation [2024-10-12 17:16:34,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34 WrapperNode [2024-10-12 17:16:34,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 17:16:34,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 17:16:34,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 17:16:34,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 17:16:34,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:34,937 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:34,966 INFO L138 Inliner]: procedures = 21, calls = 98, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 388 [2024-10-12 17:16:34,966 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 17:16:34,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 17:16:34,967 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 17:16:34,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 17:16:34,976 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:34,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:34,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:35,001 INFO L175 MemorySlicer]: Split 63 memory accesses to 14 slices as follows [2, 7, 3, 7, 22, 3, 2, 3, 2, 2, 2, 3, 3, 2]. 35 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 4, 0, 4, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 12 writes are split as follows [0, 0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 1]. [2024-10-12 17:16:35,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:35,001 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:35,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:35,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:35,027 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:35,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:35,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 17:16:35,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 17:16:35,043 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 17:16:35,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 17:16:35,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34" (1/1) ... [2024-10-12 17:16:35,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:16:35,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 17:16:35,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 17:16:35,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 17:16:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 17:16:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 17:16:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 17:16:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 17:16:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 17:16:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-12 17:16:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-12 17:16:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-12 17:16:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-12 17:16:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-12 17:16:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-12 17:16:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-12 17:16:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-12 17:16:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-12 17:16:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-12 17:16:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 17:16:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-12 17:16:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-12 17:16:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-12 17:16:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-12 17:16:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-12 17:16:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-12 17:16:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-12 17:16:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-12 17:16:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-10-12 17:16:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-10-12 17:16:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-10-12 17:16:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-10-12 17:16:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-10-12 17:16:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-10-12 17:16:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 17:16:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 17:16:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-12 17:16:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-12 17:16:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-12 17:16:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-12 17:16:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-12 17:16:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2024-10-12 17:16:35,127 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-12 17:16:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-12 17:16:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-10-12 17:16:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-10-12 17:16:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-10-12 17:16:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-10-12 17:16:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-10-12 17:16:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-10-12 17:16:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2024-10-12 17:16:35,128 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2024-10-12 17:16:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 17:16:35,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 17:16:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 17:16:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 17:16:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-12 17:16:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-12 17:16:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-12 17:16:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-12 17:16:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-10-12 17:16:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-10-12 17:16:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-10-12 17:16:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-10-12 17:16:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-10-12 17:16:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-10-12 17:16:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2024-10-12 17:16:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 17:16:35,255 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 17:16:35,257 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 17:16:35,693 INFO L? ?]: Removed 99 outVars from TransFormulas that were not future-live. [2024-10-12 17:16:35,693 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 17:16:35,716 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 17:16:35,717 INFO L314 CfgBuilder]: Removed 20 assume(true) statements. [2024-10-12 17:16:35,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:16:35 BoogieIcfgContainer [2024-10-12 17:16:35,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 17:16:35,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 17:16:35,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 17:16:35,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 17:16:35,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:16:34" (1/3) ... [2024-10-12 17:16:35,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4a4f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:16:35, skipping insertion in model container [2024-10-12 17:16:35,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:34" (2/3) ... [2024-10-12 17:16:35,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4a4f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:16:35, skipping insertion in model container [2024-10-12 17:16:35,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:16:35" (3/3) ... [2024-10-12 17:16:35,725 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682a.c [2024-10-12 17:16:35,738 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 17:16:35,738 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 17:16:35,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 17:16:35,798 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;@676a8bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 17:16:35,798 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 17:16:35,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 122 states have (on average 1.6885245901639345) internal successors, (206), 123 states have internal predecessors, (206), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-12 17:16:35,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-12 17:16:35,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:16:35,808 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:16:35,809 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:16:35,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:16:35,813 INFO L85 PathProgramCache]: Analyzing trace with hash 49609836, now seen corresponding path program 1 times [2024-10-12 17:16:35,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:16:35,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641004422] [2024-10-12 17:16:35,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:16:35,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:16:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:16:36,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:16:36,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 17:16:36,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641004422] [2024-10-12 17:16:36,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641004422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:16:36,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:16:36,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:16:36,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146308060] [2024-10-12 17:16:36,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:16:36,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 17:16:36,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 17:16:36,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 17:16:36,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:16:36,027 INFO L87 Difference]: Start difference. First operand has 130 states, 122 states have (on average 1.6885245901639345) internal successors, (206), 123 states have internal predecessors, (206), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:16:36,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:16:36,079 INFO L93 Difference]: Finished difference Result 259 states and 431 transitions. [2024-10-12 17:16:36,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 17:16:36,082 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-10-12 17:16:36,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:16:36,088 INFO L225 Difference]: With dead ends: 259 [2024-10-12 17:16:36,089 INFO L226 Difference]: Without dead ends: 127 [2024-10-12 17:16:36,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:16:36,096 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:16:36,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:16:36,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-10-12 17:16:36,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-10-12 17:16:36,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 120 states have (on average 1.5083333333333333) internal successors, (181), 120 states have internal predecessors, (181), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-12 17:16:36,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2024-10-12 17:16:36,138 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 22 [2024-10-12 17:16:36,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:16:36,139 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2024-10-12 17:16:36,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:16:36,139 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2024-10-12 17:16:36,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-12 17:16:36,140 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:16:36,140 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:16:36,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 17:16:36,141 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:16:36,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:16:36,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1064176321, now seen corresponding path program 1 times [2024-10-12 17:16:36,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:16:36,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036812196] [2024-10-12 17:16:36,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:16:36,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:16:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:16:36,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:16:36,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 17:16:36,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036812196] [2024-10-12 17:16:36,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036812196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:16:36,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:16:36,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 17:16:36,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176643723] [2024-10-12 17:16:36,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:16:36,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 17:16:36,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 17:16:36,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 17:16:36,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 17:16:36,299 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:16:36,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:16:36,337 INFO L93 Difference]: Finished difference Result 235 states and 352 transitions. [2024-10-12 17:16:36,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 17:16:36,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-10-12 17:16:36,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:16:36,340 INFO L225 Difference]: With dead ends: 235 [2024-10-12 17:16:36,340 INFO L226 Difference]: Without dead ends: 127 [2024-10-12 17:16:36,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 17:16:36,341 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:16:36,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 359 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:16:36,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-10-12 17:16:36,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-10-12 17:16:36,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 120 states have (on average 1.5) internal successors, (180), 120 states have internal predecessors, (180), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-12 17:16:36,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 188 transitions. [2024-10-12 17:16:36,353 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 188 transitions. Word has length 25 [2024-10-12 17:16:36,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:16:36,354 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 188 transitions. [2024-10-12 17:16:36,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:16:36,354 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 188 transitions. [2024-10-12 17:16:36,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-12 17:16:36,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:16:36,358 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:16:36,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 17:16:36,358 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:16:36,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:16:36,359 INFO L85 PathProgramCache]: Analyzing trace with hash -594016901, now seen corresponding path program 1 times [2024-10-12 17:16:36,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:16:36,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357353713] [2024-10-12 17:16:36,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:16:36,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:16:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:16:36,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:16:36,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 17:16:36,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357353713] [2024-10-12 17:16:36,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357353713] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:16:36,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:16:36,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 17:16:36,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517193634] [2024-10-12 17:16:36,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:16:36,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 17:16:36,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 17:16:36,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 17:16:36,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 17:16:36,701 INFO L87 Difference]: Start difference. First operand 127 states and 188 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:16:36,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:16:36,746 INFO L93 Difference]: Finished difference Result 244 states and 362 transitions. [2024-10-12 17:16:36,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 17:16:36,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-10-12 17:16:36,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:16:36,747 INFO L225 Difference]: With dead ends: 244 [2024-10-12 17:16:36,747 INFO L226 Difference]: Without dead ends: 131 [2024-10-12 17:16:36,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 17:16:36,749 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 2 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:16:36,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 517 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:16:36,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-10-12 17:16:36,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2024-10-12 17:16:36,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 123 states have (on average 1.4878048780487805) internal successors, (183), 123 states have internal predecessors, (183), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-12 17:16:36,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 191 transitions. [2024-10-12 17:16:36,755 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 191 transitions. Word has length 28 [2024-10-12 17:16:36,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:16:36,756 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 191 transitions. [2024-10-12 17:16:36,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:16:36,756 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 191 transitions. [2024-10-12 17:16:36,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-12 17:16:36,756 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:16:36,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:16:36,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 17:16:36,757 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:16:36,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:16:36,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1516285187, now seen corresponding path program 1 times [2024-10-12 17:16:36,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:16:36,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13906306] [2024-10-12 17:16:36,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:16:36,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:16:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:16:36,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:16:36,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 17:16:36,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13906306] [2024-10-12 17:16:36,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13906306] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:16:36,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:16:36,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 17:16:36,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868635473] [2024-10-12 17:16:36,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:16:36,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 17:16:36,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 17:16:36,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 17:16:36,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 17:16:36,985 INFO L87 Difference]: Start difference. First operand 130 states and 191 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:16:37,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:16:37,031 INFO L93 Difference]: Finished difference Result 218 states and 326 transitions. [2024-10-12 17:16:37,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 17:16:37,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-10-12 17:16:37,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:16:37,034 INFO L225 Difference]: With dead ends: 218 [2024-10-12 17:16:37,035 INFO L226 Difference]: Without dead ends: 132 [2024-10-12 17:16:37,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 17:16:37,038 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:16:37,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 521 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:16:37,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-10-12 17:16:37,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-10-12 17:16:37,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 125 states have (on average 1.48) internal successors, (185), 125 states have internal predecessors, (185), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-12 17:16:37,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 193 transitions. [2024-10-12 17:16:37,045 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 193 transitions. Word has length 29 [2024-10-12 17:16:37,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:16:37,046 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 193 transitions. [2024-10-12 17:16:37,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:16:37,046 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 193 transitions. [2024-10-12 17:16:37,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-12 17:16:37,047 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:16:37,047 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:16:37,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 17:16:37,047 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:16:37,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:16:37,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1313038349, now seen corresponding path program 1 times [2024-10-12 17:16:37,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:16:37,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722052770] [2024-10-12 17:16:37,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:16:37,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:16:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:16:37,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 17:16:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:16:37,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 17:16:37,205 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 17:16:37,205 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 17:16:37,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 17:16:37,210 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-12 17:16:37,241 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unable to backtranslate 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, there is no C type to represent it. at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Boogie2ACSL.translateIntegerLiteral(Boogie2ACSL.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Boogie2ACSL.translateExpression(Boogie2ACSL.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Boogie2ACSL.translateExpression(Boogie2ACSL.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpressionWithContext(CACSL2BoogieBacktranslator.java:936) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpression(CACSL2BoogieBacktranslator.java:941) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpressionForProgramState(CACSL2BoogieBacktranslator.java:930) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateProgramStateEntry(CACSL2BoogieBacktranslator.java:613) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateProgramState(CACSL2BoogieBacktranslator.java:593) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateProgramExecution(CACSL2BoogieBacktranslator.java:267) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:236) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:245) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:245) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:245) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:223) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.BacktranslationService.translateProgramExecution(BacktranslationService.java:72) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.(UnprovableResult.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportUnproveableResult(CegarLoopResultReporter.java:178) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportCounterexampleResult(CegarLoopResultReporter.java:152) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportCegarLoopResult(CegarLoopResultReporter.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:323) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-10-12 17:16:37,247 INFO L158 Benchmark]: Toolchain (without parser) took 2691.30ms. Allocated memory was 174.1MB in the beginning and 257.9MB in the end (delta: 83.9MB). Free memory was 103.7MB in the beginning and 129.8MB in the end (delta: -26.1MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. [2024-10-12 17:16:37,247 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 174.1MB. Free memory was 132.1MB in the beginning and 131.9MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:16:37,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.97ms. Allocated memory is still 174.1MB. Free memory was 103.6MB in the beginning and 144.1MB in the end (delta: -40.5MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2024-10-12 17:16:37,247 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.60ms. Allocated memory is still 174.1MB. Free memory was 144.1MB in the beginning and 141.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:16:37,248 INFO L158 Benchmark]: Boogie Preprocessor took 75.55ms. Allocated memory is still 174.1MB. Free memory was 141.0MB in the beginning and 134.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-12 17:16:37,248 INFO L158 Benchmark]: RCFGBuilder took 674.36ms. Allocated memory is still 174.1MB. Free memory was 134.7MB in the beginning and 86.4MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-10-12 17:16:37,248 INFO L158 Benchmark]: TraceAbstraction took 1526.30ms. Allocated memory was 174.1MB in the beginning and 257.9MB in the end (delta: 83.9MB). Free memory was 86.3MB in the beginning and 129.8MB in the end (delta: -43.5MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2024-10-12 17:16:37,253 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 174.1MB. Free memory was 132.1MB in the beginning and 131.9MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.97ms. Allocated memory is still 174.1MB. Free memory was 103.6MB in the beginning and 144.1MB in the end (delta: -40.5MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.60ms. Allocated memory is still 174.1MB. Free memory was 144.1MB in the beginning and 141.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.55ms. Allocated memory is still 174.1MB. Free memory was 141.0MB in the beginning and 134.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 674.36ms. Allocated memory is still 174.1MB. Free memory was 134.7MB in the beginning and 86.4MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1526.30ms. Allocated memory was 174.1MB in the beginning and 257.9MB in the end (delta: 83.9MB). Free memory was 86.3MB in the beginning and 129.8MB in the end (delta: -43.5MB). Peak memory consumption was 42.5MB. 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 - ExceptionOrErrorResult: UnsupportedOperationException: Unable to backtranslate 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, there is no C type to represent it. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unable to backtranslate 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, there is no C type to represent it.: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Boogie2ACSL.translateIntegerLiteral(Boogie2ACSL.java:341) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-12 17:16:37,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0682a.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 77640868601be41246aa819b7e4e87995230298ea897561367d6e56014f366ff --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:16:39,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:16:39,127 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-12 17:16:39,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:16:39,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:16:39,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:16:39,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:16:39,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:16:39,163 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:16:39,163 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:16:39,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:16:39,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:16:39,164 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:16:39,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:16:39,165 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:16:39,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:16:39,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:16:39,168 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:16:39,168 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:16:39,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:16:39,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:16:39,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:16:39,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:16:39,169 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-12 17:16:39,170 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-12 17:16:39,170 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:16:39,171 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-12 17:16:39,171 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:16:39,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:16:39,171 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:16:39,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:16:39,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:16:39,172 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:16:39,172 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:16:39,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:16:39,173 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:16:39,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:16:39,173 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:16:39,173 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-12 17:16:39,173 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-12 17:16:39,174 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:16:39,174 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:16:39,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:16:39,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:16:39,175 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-12 17:16:39,175 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77640868601be41246aa819b7e4e87995230298ea897561367d6e56014f366ff [2024-10-12 17:16:39,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:16:39,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:16:39,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:16:39,438 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:16:39,438 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:16:39,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2024-10-12 17:16:40,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:16:40,902 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:16:40,903 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2024-10-12 17:16:40,911 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29be0bb3b/97166d1cc16a45e880cbf256fd24f8f8/FLAG9d145c16f [2024-10-12 17:16:41,291 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29be0bb3b/97166d1cc16a45e880cbf256fd24f8f8 [2024-10-12 17:16:41,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:16:41,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:16:41,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:16:41,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:16:41,300 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:16:41,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de7c1af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41, skipping insertion in model container [2024-10-12 17:16:41,302 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,327 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:16:41,542 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c[6875,6888] [2024-10-12 17:16:41,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:16:41,562 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 17:16:41,611 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c[6875,6888] [2024-10-12 17:16:41,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:16:41,633 INFO L204 MainTranslator]: Completed translation [2024-10-12 17:16:41,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41 WrapperNode [2024-10-12 17:16:41,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 17:16:41,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 17:16:41,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 17:16:41,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 17:16:41,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,682 INFO L138 Inliner]: procedures = 24, calls = 98, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 278 [2024-10-12 17:16:41,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 17:16:41,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 17:16:41,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 17:16:41,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 17:16:41,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,707 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,731 INFO L175 MemorySlicer]: Split 63 memory accesses to 14 slices as follows [2, 7, 7, 3, 22, 2, 2, 2, 2, 3, 3, 3, 3, 2]. 35 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 4, 4, 0, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 12 writes are split as follows [0, 0, 0, 2, 0, 1, 1, 1, 1, 2, 1, 1, 1, 1]. [2024-10-12 17:16:41,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,779 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 17:16:41,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 17:16:41,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 17:16:41,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 17:16:41,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41" (1/1) ... [2024-10-12 17:16:41,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:16:41,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 17:16:41,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 17:16:41,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 17:16:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 17:16:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-10-12 17:16:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-10-12 17:16:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-10-12 17:16:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-10-12 17:16:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-10-12 17:16:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-10-12 17:16:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2024-10-12 17:16:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7 [2024-10-12 17:16:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8 [2024-10-12 17:16:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#9 [2024-10-12 17:16:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#10 [2024-10-12 17:16:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#11 [2024-10-12 17:16:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#12 [2024-10-12 17:16:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#13 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#9 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#10 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#11 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#12 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#13 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-12 17:16:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2024-10-12 17:16:41,854 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-10-12 17:16:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-10-12 17:16:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-10-12 17:16:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-10-12 17:16:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-10-12 17:16:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-10-12 17:16:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2024-10-12 17:16:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7 [2024-10-12 17:16:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8 [2024-10-12 17:16:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#9 [2024-10-12 17:16:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#10 [2024-10-12 17:16:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#11 [2024-10-12 17:16:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#12 [2024-10-12 17:16:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#13 [2024-10-12 17:16:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2024-10-12 17:16:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2024-10-12 17:16:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-12 17:16:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-12 17:16:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-12 17:16:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-12 17:16:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 17:16:41,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-12 17:16:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-12 17:16:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-12 17:16:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-10-12 17:16:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-10-12 17:16:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-10-12 17:16:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-10-12 17:16:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-10-12 17:16:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-10-12 17:16:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-10-12 17:16:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2024-10-12 17:16:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2024-10-12 17:16:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 17:16:42,003 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 17:16:42,005 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 17:17:20,882 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2024-10-12 17:17:20,882 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 17:17:20,921 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 17:17:20,921 INFO L314 CfgBuilder]: Removed 20 assume(true) statements. [2024-10-12 17:17:20,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:17:20 BoogieIcfgContainer [2024-10-12 17:17:20,921 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 17:17:20,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 17:17:20,923 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 17:17:20,926 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 17:17:20,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:16:41" (1/3) ... [2024-10-12 17:17:20,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59776e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:17:20, skipping insertion in model container [2024-10-12 17:17:20,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:16:41" (2/3) ... [2024-10-12 17:17:20,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59776e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:17:20, skipping insertion in model container [2024-10-12 17:17:20,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:17:20" (3/3) ... [2024-10-12 17:17:20,929 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682a.c [2024-10-12 17:17:20,942 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 17:17:20,942 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 17:17:20,990 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 17:17:20,995 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;@7e4406df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 17:17:20,995 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 17:17:20,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 80 states have (on average 1.7375) internal successors, (139), 81 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-12 17:17:21,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-12 17:17:21,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:17:21,004 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:17:21,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:17:21,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:17:21,010 INFO L85 PathProgramCache]: Analyzing trace with hash 448528835, now seen corresponding path program 1 times [2024-10-12 17:17:21,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:17:21,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877320336] [2024-10-12 17:17:21,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:17:21,021 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:17:21,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:17:21,024 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:17:21,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-12 17:17:21,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:17:21,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 17:17:21,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:17:21,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:17:21,389 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:17:21,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:17:21,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877320336] [2024-10-12 17:17:21,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877320336] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:17:21,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:17:21,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:17:21,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713098492] [2024-10-12 17:17:21,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:17:21,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 17:17:21,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:17:21,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 17:17:21,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:17:21,412 INFO L87 Difference]: Start difference. First operand has 88 states, 80 states have (on average 1.7375) internal successors, (139), 81 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:17:22,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:17:22,115 INFO L93 Difference]: Finished difference Result 175 states and 297 transitions. [2024-10-12 17:17:22,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 17:17:22,117 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-12 17:17:22,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:17:22,122 INFO L225 Difference]: With dead ends: 175 [2024-10-12 17:17:22,122 INFO L226 Difference]: Without dead ends: 85 [2024-10-12 17:17:22,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:17:22,127 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 17:17:22,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 17:17:22,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-12 17:17:22,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-10-12 17:17:22,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 78 states have (on average 1.4615384615384615) internal successors, (114), 78 states have internal predecessors, (114), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-12 17:17:22,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 122 transitions. [2024-10-12 17:17:22,155 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 122 transitions. Word has length 13 [2024-10-12 17:17:22,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:17:22,155 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 122 transitions. [2024-10-12 17:17:22,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:17:22,156 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 122 transitions. [2024-10-12 17:17:22,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-12 17:17:22,156 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:17:22,157 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:17:22,169 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 [2024-10-12 17:17:22,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:17:22,358 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:17:22,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:17:22,359 INFO L85 PathProgramCache]: Analyzing trace with hash -624989546, now seen corresponding path program 1 times [2024-10-12 17:17:22,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:17:22,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081960042] [2024-10-12 17:17:22,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:17:22,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:17:22,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:17:22,362 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:17:22,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-12 17:17:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:17:22,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 17:17:22,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:17:23,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:17:23,025 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:17:23,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:17:23,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081960042] [2024-10-12 17:17:23,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081960042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:17:23,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:17:23,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 17:17:23,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141077783] [2024-10-12 17:17:23,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:17:23,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 17:17:23,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:17:23,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 17:17:23,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 17:17:23,028 INFO L87 Difference]: Start difference. First operand 85 states and 122 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:17:24,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:17:24,117 INFO L93 Difference]: Finished difference Result 162 states and 235 transitions. [2024-10-12 17:17:24,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 17:17:24,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-12 17:17:24,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:17:24,119 INFO L225 Difference]: With dead ends: 162 [2024-10-12 17:17:24,119 INFO L226 Difference]: Without dead ends: 85 [2024-10-12 17:17:24,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 17:17:24,121 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 17:17:24,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 225 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 17:17:24,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-12 17:17:24,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-10-12 17:17:24,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 78 states have (on average 1.4487179487179487) internal successors, (113), 78 states have internal predecessors, (113), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-12 17:17:24,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 121 transitions. [2024-10-12 17:17:24,127 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 121 transitions. Word has length 16 [2024-10-12 17:17:24,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:17:24,127 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 121 transitions. [2024-10-12 17:17:24,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:17:24,128 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 121 transitions. [2024-10-12 17:17:24,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-12 17:17:24,128 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:17:24,128 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:17:24,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-12 17:17:24,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:17:24,329 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:17:24,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:17:24,330 INFO L85 PathProgramCache]: Analyzing trace with hash 328694493, now seen corresponding path program 1 times [2024-10-12 17:17:24,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:17:24,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720911366] [2024-10-12 17:17:24,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:17:24,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:17:24,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:17:24,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:17:24,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-12 17:17:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:17:24,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-12 17:17:24,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:17:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:17:46,249 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:17:46,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:17:46,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720911366] [2024-10-12 17:17:46,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720911366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:17:46,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:17:46,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 17:17:46,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904626871] [2024-10-12 17:17:46,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:17:46,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 17:17:46,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:17:46,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 17:17:46,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-12 17:17:46,252 INFO L87 Difference]: Start difference. First operand 85 states and 121 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:17:57,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-12 17:18:09,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-12 17:18:16,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-12 17:18:16,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:18:16,970 INFO L93 Difference]: Finished difference Result 120 states and 164 transitions. [2024-10-12 17:18:16,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-12 17:18:16,971 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-10-12 17:18:16,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:18:16,972 INFO L225 Difference]: With dead ends: 120 [2024-10-12 17:18:16,972 INFO L226 Difference]: Without dead ends: 85 [2024-10-12 17:18:16,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 25.9s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-10-12 17:18:16,973 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 122 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2024-10-12 17:18:16,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 653 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 162 Invalid, 1 Unknown, 0 Unchecked, 17.3s Time] [2024-10-12 17:18:16,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-12 17:18:16,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2024-10-12 17:18:16,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 77 states have (on average 1.4155844155844155) internal successors, (109), 77 states have internal predecessors, (109), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 17:18:16,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2024-10-12 17:18:16,985 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 115 transitions. Word has length 19 [2024-10-12 17:18:16,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:18:16,985 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 115 transitions. [2024-10-12 17:18:16,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:18:16,985 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2024-10-12 17:18:16,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-12 17:18:16,986 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:18:16,986 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:18:17,000 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 [2024-10-12 17:18:17,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:18:17,187 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:18:17,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:18:17,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1738446701, now seen corresponding path program 1 times [2024-10-12 17:18:17,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:18:17,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617524000] [2024-10-12 17:18:17,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:18:17,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:18:17,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:18:17,192 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:18:17,193 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