./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_0662a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0662a.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 4ab31643130fe59fd572e1c725f7ce4686b4f219c563d19cc3c93d88df427f8c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 00:43:10,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 00:43:10,674 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 00:43:10,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 00:43:10,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 00:43:10,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 00:43:10,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 00:43:10,696 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 00:43:10,697 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 00:43:10,697 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 00:43:10,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 00:43:10,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 00:43:10,698 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 00:43:10,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 00:43:10,699 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 00:43:10,699 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 00:43:10,699 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 00:43:10,699 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 00:43:10,700 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 00:43:10,700 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 00:43:10,700 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 00:43:10,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 00:43:10,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 00:43:10,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 00:43:10,702 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 00:43:10,702 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 00:43:10,702 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 00:43:10,703 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 00:43:10,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 00:43:10,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 00:43:10,703 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 00:43:10,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 00:43:10,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:43:10,704 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 00:43:10,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 00:43:10,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 00:43:10,705 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 00:43:10,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 00:43:10,705 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 00:43:10,706 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 00:43:10,706 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 00:43:10,706 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 00:43:10,706 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ab31643130fe59fd572e1c725f7ce4686b4f219c563d19cc3c93d88df427f8c [2024-10-14 00:43:10,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 00:43:10,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 00:43:10,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 00:43:10,964 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 00:43:10,965 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 00:43:10,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0662a.c [2024-10-14 00:43:12,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 00:43:12,449 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 00:43:12,449 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0662a.c [2024-10-14 00:43:12,459 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6174a217a/042ee83a7c67495e8ab1d9365d37b067/FLAG99262c2c2 [2024-10-14 00:43:12,474 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6174a217a/042ee83a7c67495e8ab1d9365d37b067 [2024-10-14 00:43:12,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 00:43:12,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 00:43:12,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 00:43:12,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 00:43:12,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 00:43:12,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8d9d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12, skipping insertion in model container [2024-10-14 00:43:12,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,509 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 00:43:12,688 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_0662a.c[6225,6238] [2024-10-14 00:43:12,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:43:12,703 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 00:43:12,735 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_0662a.c[6225,6238] [2024-10-14 00:43:12,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:43:12,755 INFO L204 MainTranslator]: Completed translation [2024-10-14 00:43:12,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12 WrapperNode [2024-10-14 00:43:12,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 00:43:12,757 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 00:43:12,757 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 00:43:12,757 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 00:43:12,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,881 INFO L138 Inliner]: procedures = 19, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 311 [2024-10-14 00:43:12,881 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 00:43:12,882 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 00:43:12,882 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 00:43:12,882 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 00:43:12,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,903 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,931 INFO L175 MemorySlicer]: Split 58 memory accesses to 12 slices as follows [2, 2, 3, 3, 7, 3, 7, 2, 3, 22, 2, 2]. 38 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [0, 2, 0, 0, 4, 0, 4, 0, 0, 11, 0, 0]. The 10 writes are split as follows [1, 0, 2, 1, 0, 1, 0, 1, 2, 0, 1, 1]. [2024-10-14 00:43:12,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 00:43:12,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 00:43:12,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 00:43:12,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 00:43:12,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12" (1/1) ... [2024-10-14 00:43:12,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:43:12,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:43:13,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 00:43:13,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 00:43:13,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 00:43:13,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 00:43:13,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 00:43:13,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 00:43:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 00:43:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 00:43:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-14 00:43:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-14 00:43:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-14 00:43:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-14 00:43:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-14 00:43:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-14 00:43:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-14 00:43:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 00:43:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 00:43:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2024-10-14 00:43:13,051 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-14 00:43:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-14 00:43:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-14 00:43:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-14 00:43:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-14 00:43:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-10-14 00:43:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-10-14 00:43:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-10-14 00:43:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-10-14 00:43:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2024-10-14 00:43:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2024-10-14 00:43:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 00:43:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 00:43:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 00:43:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 00:43:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 00:43:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 00:43:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 00:43:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-14 00:43:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-14 00:43:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-14 00:43:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-14 00:43:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-14 00:43:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-14 00:43:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-14 00:43:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-14 00:43:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-14 00:43:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-14 00:43:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-14 00:43:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-14 00:43:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-14 00:43:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-14 00:43:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-10-14 00:43:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-10-14 00:43:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-10-14 00:43:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-10-14 00:43:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-10-14 00:43:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 00:43:13,205 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 00:43:13,207 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 00:43:13,625 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-10-14 00:43:13,626 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 00:43:13,653 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 00:43:13,654 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-14 00:43:13,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:43:13 BoogieIcfgContainer [2024-10-14 00:43:13,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 00:43:13,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 00:43:13,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 00:43:13,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 00:43:13,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:43:12" (1/3) ... [2024-10-14 00:43:13,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54224925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:43:13, skipping insertion in model container [2024-10-14 00:43:13,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:12" (2/3) ... [2024-10-14 00:43:13,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54224925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:43:13, skipping insertion in model container [2024-10-14 00:43:13,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:43:13" (3/3) ... [2024-10-14 00:43:13,662 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662a.c [2024-10-14 00:43:13,674 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 00:43:13,674 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 00:43:13,726 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 00:43:13,732 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;@23b160a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 00:43:13,733 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 00:43:13,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 104 states have (on average 1.7019230769230769) internal successors, (177), 105 states have internal predecessors, (177), 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) [2024-10-14 00:43:13,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 00:43:13,743 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:43:13,743 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:43:13,744 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:43:13,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:43:13,748 INFO L85 PathProgramCache]: Analyzing trace with hash 681056836, now seen corresponding path program 1 times [2024-10-14 00:43:13,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:43:13,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313408495] [2024-10-14 00:43:13,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:43:13,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:43:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:43:13,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:43:13,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:43:13,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313408495] [2024-10-14 00:43:13,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313408495] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:43:13,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:43:13,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:43:13,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128190855] [2024-10-14 00:43:13,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:43:13,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 00:43:13,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:43:13,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 00:43:13,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:43:13,932 INFO L87 Difference]: Start difference. First operand has 112 states, 104 states have (on average 1.7019230769230769) internal successors, (177), 105 states have internal predecessors, (177), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:43:13,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:43:13,984 INFO L93 Difference]: Finished difference Result 222 states and 371 transitions. [2024-10-14 00:43:13,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 00:43:13,988 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-14 00:43:13,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:43:13,995 INFO L225 Difference]: With dead ends: 222 [2024-10-14 00:43:13,997 INFO L226 Difference]: Without dead ends: 109 [2024-10-14 00:43:14,001 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 [2024-10-14 00:43:14,005 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:43:14,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 00:43:14,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-14 00:43:14,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-10-14 00:43:14,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 102 states have (on average 1.5294117647058822) internal successors, (156), 102 states have internal predecessors, (156), 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) [2024-10-14 00:43:14,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 164 transitions. [2024-10-14 00:43:14,043 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 164 transitions. Word has length 14 [2024-10-14 00:43:14,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:43:14,043 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 164 transitions. [2024-10-14 00:43:14,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:43:14,043 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 164 transitions. [2024-10-14 00:43:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-14 00:43:14,044 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:43:14,044 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:43:14,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 00:43:14,045 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:43:14,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:43:14,045 INFO L85 PathProgramCache]: Analyzing trace with hash -996690387, now seen corresponding path program 1 times [2024-10-14 00:43:14,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:43:14,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437256487] [2024-10-14 00:43:14,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:43:14,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:43:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:43:14,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:43:14,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:43:14,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437256487] [2024-10-14 00:43:14,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437256487] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:43:14,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:43:14,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 00:43:14,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852502250] [2024-10-14 00:43:14,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:43:14,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 00:43:14,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:43:14,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 00:43:14,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 00:43:14,357 INFO L87 Difference]: Start difference. First operand 109 states and 164 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2024-10-14 00:43:14,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:43:14,416 INFO L93 Difference]: Finished difference Result 197 states and 299 transitions. [2024-10-14 00:43:14,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 00:43:14,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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 [2024-10-14 00:43:14,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:43:14,418 INFO L225 Difference]: With dead ends: 197 [2024-10-14 00:43:14,418 INFO L226 Difference]: Without dead ends: 111 [2024-10-14 00:43:14,419 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 [2024-10-14 00:43:14,419 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:43:14,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 455 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 00:43:14,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-10-14 00:43:14,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-10-14 00:43:14,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 104 states have (on average 1.5192307692307692) internal successors, (158), 104 states have internal predecessors, (158), 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) [2024-10-14 00:43:14,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 166 transitions. [2024-10-14 00:43:14,435 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 166 transitions. Word has length 16 [2024-10-14 00:43:14,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:43:14,435 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 166 transitions. [2024-10-14 00:43:14,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2024-10-14 00:43:14,435 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 166 transitions. [2024-10-14 00:43:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-14 00:43:14,436 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:43:14,436 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:43:14,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 00:43:14,436 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:43:14,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:43:14,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1905869889, now seen corresponding path program 1 times [2024-10-14 00:43:14,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:43:14,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752515997] [2024-10-14 00:43:14,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:43:14,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:43:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 00:43:14,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 00:43:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 00:43:14,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 00:43:14,563 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 00:43:14,564 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 00:43:14,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 00:43:14,568 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 00:43:14,594 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unable to backtranslate 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, 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) [2024-10-14 00:43:14,600 INFO L158 Benchmark]: Toolchain (without parser) took 2122.28ms. Allocated memory is still 176.2MB. Free memory was 106.1MB in the beginning and 112.0MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:43:14,600 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory was 132.3MB in the beginning and 132.2MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:43:14,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.09ms. Allocated memory is still 176.2MB. Free memory was 105.8MB in the beginning and 90.0MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-14 00:43:14,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.26ms. Allocated memory is still 176.2MB. Free memory was 90.0MB in the beginning and 144.9MB in the end (delta: -54.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-10-14 00:43:14,601 INFO L158 Benchmark]: Boogie Preprocessor took 77.44ms. Allocated memory is still 176.2MB. Free memory was 144.9MB in the beginning and 139.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 00:43:14,601 INFO L158 Benchmark]: RCFGBuilder took 694.59ms. Allocated memory is still 176.2MB. Free memory was 139.2MB in the beginning and 99.4MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-10-14 00:43:14,601 INFO L158 Benchmark]: TraceAbstraction took 943.62ms. Allocated memory is still 176.2MB. Free memory was 98.7MB in the beginning and 112.0MB in the end (delta: -13.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:43:14,604 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory was 132.3MB in the beginning and 132.2MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.09ms. Allocated memory is still 176.2MB. Free memory was 105.8MB in the beginning and 90.0MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.26ms. Allocated memory is still 176.2MB. Free memory was 90.0MB in the beginning and 144.9MB in the end (delta: -54.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.44ms. Allocated memory is still 176.2MB. Free memory was 144.9MB in the beginning and 139.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 694.59ms. Allocated memory is still 176.2MB. Free memory was 139.2MB in the beginning and 99.4MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 943.62ms. Allocated memory is still 176.2MB. Free memory was 98.7MB in the beginning and 112.0MB in the end (delta: -13.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: UnsupportedOperationException: Unable to backtranslate 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, there is no C type to represent it. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unable to backtranslate 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, 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. [2024-10-14 00:43:14,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0662a.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 4ab31643130fe59fd572e1c725f7ce4686b4f219c563d19cc3c93d88df427f8c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 00:43:16,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 00:43:16,664 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-14 00:43:16,671 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 00:43:16,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 00:43:16,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 00:43:16,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 00:43:16,696 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 00:43:16,697 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 00:43:16,697 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 00:43:16,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 00:43:16,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 00:43:16,698 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 00:43:16,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 00:43:16,699 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 00:43:16,699 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 00:43:16,701 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 00:43:16,703 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 00:43:16,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 00:43:16,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 00:43:16,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 00:43:16,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 00:43:16,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 00:43:16,706 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 00:43:16,706 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 00:43:16,706 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 00:43:16,706 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 00:43:16,706 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 00:43:16,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 00:43:16,706 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 00:43:16,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 00:43:16,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 00:43:16,707 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 00:43:16,707 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 00:43:16,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:43:16,707 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 00:43:16,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 00:43:16,721 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 00:43:16,722 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 00:43:16,722 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 00:43:16,722 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 00:43:16,722 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 00:43:16,723 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 00:43:16,723 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 00:43:16,723 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 00:43:16,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ab31643130fe59fd572e1c725f7ce4686b4f219c563d19cc3c93d88df427f8c [2024-10-14 00:43:16,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 00:43:17,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 00:43:17,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 00:43:17,005 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 00:43:17,005 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 00:43:17,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0662a.c [2024-10-14 00:43:18,341 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 00:43:18,518 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 00:43:18,518 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0662a.c [2024-10-14 00:43:18,529 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8baf4d693/0098c8baeebc41f39cee636d72294f26/FLAG969f45915 [2024-10-14 00:43:18,541 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8baf4d693/0098c8baeebc41f39cee636d72294f26 [2024-10-14 00:43:18,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 00:43:18,544 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 00:43:18,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 00:43:18,545 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 00:43:18,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 00:43:18,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:18,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd92a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18, skipping insertion in model container [2024-10-14 00:43:18,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:18,570 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 00:43:18,786 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_0662a.c[6225,6238] [2024-10-14 00:43:18,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:43:18,808 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 00:43:18,859 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_0662a.c[6225,6238] [2024-10-14 00:43:18,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:43:18,884 INFO L204 MainTranslator]: Completed translation [2024-10-14 00:43:18,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18 WrapperNode [2024-10-14 00:43:18,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 00:43:18,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 00:43:18,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 00:43:18,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 00:43:18,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:18,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:18,939 INFO L138 Inliner]: procedures = 22, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 228 [2024-10-14 00:43:18,940 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 00:43:18,940 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 00:43:18,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 00:43:18,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 00:43:18,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:18,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:18,959 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:18,983 INFO L175 MemorySlicer]: Split 58 memory accesses to 12 slices as follows [2, 3, 3, 2, 2, 7, 7, 2, 22, 3, 3, 2]. 38 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 0, 0, 0, 0, 4, 4, 0, 11, 0, 0, 0]. The 10 writes are split as follows [0, 1, 2, 1, 1, 0, 0, 1, 0, 1, 2, 1]. [2024-10-14 00:43:18,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:18,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:19,008 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:19,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:19,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:19,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:19,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 00:43:19,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 00:43:19,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 00:43:19,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 00:43:19,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18" (1/1) ... [2024-10-14 00:43:19,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:43:19,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:43:19,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 00:43:19,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 00:43:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 00:43:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-10-14 00:43:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-10-14 00:43:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-10-14 00:43:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-10-14 00:43:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-10-14 00:43:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-10-14 00:43:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2024-10-14 00:43:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7 [2024-10-14 00:43:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8 [2024-10-14 00:43:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#9 [2024-10-14 00:43:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#10 [2024-10-14 00:43:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#11 [2024-10-14 00:43:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-10-14 00:43:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-10-14 00:43:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-10-14 00:43:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-10-14 00:43:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-10-14 00:43:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-10-14 00:43:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2024-10-14 00:43:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7 [2024-10-14 00:43:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8 [2024-10-14 00:43:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#9 [2024-10-14 00:43:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#10 [2024-10-14 00:43:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#11 [2024-10-14 00:43:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 00:43:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-14 00:43:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-14 00:43:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-14 00:43:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-14 00:43:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-10-14 00:43:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-10-14 00:43:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-10-14 00:43:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-10-14 00:43:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-10-14 00:43:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-10-14 00:43:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-10-14 00:43:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 00:43:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2024-10-14 00:43:19,135 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2024-10-14 00:43:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-10-14 00:43:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-10-14 00:43:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-10-14 00:43:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-10-14 00:43:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-10-14 00:43:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-10-14 00:43:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2024-10-14 00:43:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7 [2024-10-14 00:43:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8 [2024-10-14 00:43:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#9 [2024-10-14 00:43:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#10 [2024-10-14 00:43:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#11 [2024-10-14 00:43:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2024-10-14 00:43:19,136 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2024-10-14 00:43:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-14 00:43:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-14 00:43:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-14 00:43:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-14 00:43:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-14 00:43:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-10-14 00:43:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-10-14 00:43:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-10-14 00:43:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-10-14 00:43:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-10-14 00:43:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-10-14 00:43:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-10-14 00:43:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 00:43:19,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 00:43:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-14 00:43:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-14 00:43:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-14 00:43:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-14 00:43:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-14 00:43:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-10-14 00:43:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-10-14 00:43:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-10-14 00:43:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-10-14 00:43:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-10-14 00:43:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-10-14 00:43:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-10-14 00:43:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 00:43:19,267 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 00:43:19,269 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 00:43:56,552 INFO L? ?]: Removed 85 outVars from TransFormulas that were not future-live. [2024-10-14 00:43:56,553 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 00:43:56,594 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 00:43:56,595 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-14 00:43:56,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:43:56 BoogieIcfgContainer [2024-10-14 00:43:56,595 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 00:43:56,596 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 00:43:56,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 00:43:56,601 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 00:43:56,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:43:18" (1/3) ... [2024-10-14 00:43:56,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc9c9a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:43:56, skipping insertion in model container [2024-10-14 00:43:56,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:18" (2/3) ... [2024-10-14 00:43:56,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc9c9a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:43:56, skipping insertion in model container [2024-10-14 00:43:56,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:43:56" (3/3) ... [2024-10-14 00:43:56,604 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662a.c [2024-10-14 00:43:56,619 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 00:43:56,620 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 00:43:56,674 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 00:43:56,679 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;@4fa58844, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 00:43:56,679 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 00:43:56,687 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 73 states have (on average 1.7397260273972603) internal successors, (127), 74 states have internal predecessors, (127), 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) [2024-10-14 00:43:56,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-14 00:43:56,695 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:43:56,696 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:43:56,696 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:43:56,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:43:56,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1725812973, now seen corresponding path program 1 times [2024-10-14 00:43:56,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 00:43:56,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664763081] [2024-10-14 00:43:56,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:43:56,715 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:43:56,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 00:43:56,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 00:43:56,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-14 00:43:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:43:57,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 00:43:57,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:43:57,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:43:57,035 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:43:57,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 00:43:57,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664763081] [2024-10-14 00:43:57,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664763081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:43:57,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:43:57,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:43:57,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566702505] [2024-10-14 00:43:57,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:43:57,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 00:43:57,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 00:43:57,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 00:43:57,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:43:57,060 INFO L87 Difference]: Start difference. First operand has 81 states, 73 states have (on average 1.7397260273972603) internal successors, (127), 74 states have internal predecessors, (127), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:43:57,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:43:57,462 INFO L93 Difference]: Finished difference Result 160 states and 271 transitions. [2024-10-14 00:43:57,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 00:43:57,464 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-14 00:43:57,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:43:57,470 INFO L225 Difference]: With dead ends: 160 [2024-10-14 00:43:57,470 INFO L226 Difference]: Without dead ends: 78 [2024-10-14 00:43:57,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:43:57,481 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 00:43:57,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 00:43:57,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-10-14 00:43:57,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-10-14 00:43:57,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 71 states have (on average 1.4929577464788732) internal successors, (106), 71 states have internal predecessors, (106), 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) [2024-10-14 00:43:57,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2024-10-14 00:43:57,531 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 10 [2024-10-14 00:43:57,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:43:57,532 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2024-10-14 00:43:57,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:43:57,533 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2024-10-14 00:43:57,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-14 00:43:57,534 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:43:57,534 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:43:57,547 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 [2024-10-14 00:43:57,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:43:57,736 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:43:57,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:43:57,737 INFO L85 PathProgramCache]: Analyzing trace with hash 691136534, now seen corresponding path program 1 times [2024-10-14 00:43:57,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 00:43:57,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850101141] [2024-10-14 00:43:57,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:43:57,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:43:57,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 00:43:57,740 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 00:43:57,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-14 00:43:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:43:58,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-14 00:43:58,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:44:12,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:44:12,337 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:44:12,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 00:44:12,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850101141] [2024-10-14 00:44:12,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850101141] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:44:12,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:44:12,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 00:44:12,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122899666] [2024-10-14 00:44:12,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:44:12,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 00:44:12,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 00:44:12,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 00:44:12,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=42, Unknown=1, NotChecked=0, Total=56 [2024-10-14 00:44:12,341 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:44:23,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-14 00:44:27,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-14 00:44:30,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-14 00:44:31,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-14 00:44:37,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:44:37,643 INFO L93 Difference]: Finished difference Result 141 states and 200 transitions. [2024-10-14 00:44:37,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 00:44:37,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 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 12 [2024-10-14 00:44:37,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:44:37,646 INFO L225 Difference]: With dead ends: 141 [2024-10-14 00:44:37,646 INFO L226 Difference]: Without dead ends: 74 [2024-10-14 00:44:37,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=41, Invalid=90, Unknown=1, NotChecked=0, Total=132 [2024-10-14 00:44:37,648 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 89 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2024-10-14 00:44:37,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 403 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 2 Unknown, 0 Unchecked, 20.5s Time] [2024-10-14 00:44:37,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-10-14 00:44:37,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 62. [2024-10-14 00:44:37,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 56 states have internal predecessors, (74), 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) [2024-10-14 00:44:37,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2024-10-14 00:44:37,654 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 12 [2024-10-14 00:44:37,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:44:37,655 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2024-10-14 00:44:37,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:44:37,655 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2024-10-14 00:44:37,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 00:44:37,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:44:37,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:44:37,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-14 00:44:37,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:44:37,856 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:44:37,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:44:37,857 INFO L85 PathProgramCache]: Analyzing trace with hash 966810844, now seen corresponding path program 1 times [2024-10-14 00:44:37,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 00:44:37,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916534431] [2024-10-14 00:44:37,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:44:37,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:44:37,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 00:44:37,861 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 00:44:37,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-14 00:44:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:44:38,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-14 00:44:38,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:44:49,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:44:49,121 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:44:49,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 00:44:49,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916534431] [2024-10-14 00:44:49,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916534431] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:44:49,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:44:49,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 00:44:49,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104730349] [2024-10-14 00:44:49,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:44:49,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 00:44:49,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 00:44:49,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 00:44:49,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 00:44:49,122 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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)