./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_1032a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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_1032a.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 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 22:23:44,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 22:23:45,022 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 22:23:45,028 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 22:23:45,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 22:23:45,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 22:23:45,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 22:23:45,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 22:23:45,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 22:23:45,046 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 22:23:45,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 22:23:45,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 22:23:45,048 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 22:23:45,048 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 22:23:45,048 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 22:23:45,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 22:23:45,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 22:23:45,049 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 22:23:45,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 22:23:45,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 22:23:45,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 22:23:45,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 22:23:45,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 22:23:45,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 22:23:45,051 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 22:23:45,051 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 22:23:45,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 22:23:45,052 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 22:23:45,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 22:23:45,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 22:23:45,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 22:23:45,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 22:23:45,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:23:45,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 22:23:45,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 22:23:45,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 22:23:45,054 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 22:23:45,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 22:23:45,054 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 22:23:45,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 22:23:45,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 22:23:45,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 22:23:45,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 [2024-10-23 22:23:45,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 22:23:45,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 22:23:45,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 22:23:45,313 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 22:23:45,313 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 22:23:45,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2024-10-23 22:23:46,635 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 22:23:46,819 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 22:23:46,820 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2024-10-23 22:23:46,827 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddf9fc30e/d5c9375e852d481da1959edfe6fbac47/FLAG9206424d7 [2024-10-23 22:23:47,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddf9fc30e/d5c9375e852d481da1959edfe6fbac47 [2024-10-23 22:23:47,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 22:23:47,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 22:23:47,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 22:23:47,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 22:23:47,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 22:23:47,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55a85183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47, skipping insertion in model container [2024-10-23 22:23:47,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,258 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 22:23:47,479 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_1032a.c[2282,2295] [2024-10-23 22:23:47,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:23:47,492 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 22:23:47,515 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_1032a.c[2282,2295] [2024-10-23 22:23:47,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:23:47,528 INFO L204 MainTranslator]: Completed translation [2024-10-23 22:23:47,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47 WrapperNode [2024-10-23 22:23:47,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 22:23:47,530 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 22:23:47,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 22:23:47,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 22:23:47,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,547 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,568 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2024-10-23 22:23:47,568 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 22:23:47,569 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 22:23:47,569 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 22:23:47,569 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 22:23:47,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,579 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,592 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 3, 2]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 2, 1, 1]. [2024-10-23 22:23:47,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,592 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 22:23:47,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 22:23:47,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 22:23:47,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 22:23:47,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47" (1/1) ... [2024-10-23 22:23:47,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:23:47,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 22:23:47,640 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) [2024-10-23 22:23:47,646 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 [2024-10-23 22:23:47,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 22:23:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 22:23:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-23 22:23:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-23 22:23:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-23 22:23:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-23 22:23:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-23 22:23:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-23 22:23:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-23 22:23:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-23 22:23:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-23 22:23:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-23 22:23:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-23 22:23:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-23 22:23:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-23 22:23:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-23 22:23:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-23 22:23:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-23 22:23:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 22:23:47,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 22:23:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-23 22:23:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-23 22:23:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-23 22:23:47,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-23 22:23:47,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-23 22:23:47,795 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 22:23:47,798 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 22:23:48,132 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-10-23 22:23:48,132 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 22:23:48,162 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 22:23:48,164 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-23 22:23:48,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:23:48 BoogieIcfgContainer [2024-10-23 22:23:48,165 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 22:23:48,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 22:23:48,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 22:23:48,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 22:23:48,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:23:47" (1/3) ... [2024-10-23 22:23:48,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fda4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:23:48, skipping insertion in model container [2024-10-23 22:23:48,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:47" (2/3) ... [2024-10-23 22:23:48,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fda4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:23:48, skipping insertion in model container [2024-10-23 22:23:48,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:23:48" (3/3) ... [2024-10-23 22:23:48,174 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a.c [2024-10-23 22:23:48,191 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 22:23:48,192 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 22:23:48,259 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 22:23:48,267 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;@18e1c67d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 22:23:48,268 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 22:23:48,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.5689655172413792) internal successors, (91), 59 states have internal predecessors, (91), 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) [2024-10-23 22:23:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-23 22:23:48,280 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:23:48,281 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:23:48,282 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:23:48,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:23:48,287 INFO L85 PathProgramCache]: Analyzing trace with hash 407700034, now seen corresponding path program 1 times [2024-10-23 22:23:48,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 22:23:48,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482224659] [2024-10-23 22:23:48,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:23:48,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 22:23:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:23:48,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:23:48,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 22:23:48,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482224659] [2024-10-23 22:23:48,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482224659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:23:48,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:23:48,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 22:23:48,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494304614] [2024-10-23 22:23:48,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:23:48,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 22:23:48,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 22:23:48,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 22:23:48,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 22:23:48,436 INFO L87 Difference]: Start difference. First operand has 60 states, 58 states have (on average 1.5689655172413792) internal successors, (91), 59 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2024-10-23 22:23:48,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:23:48,456 INFO L93 Difference]: Finished difference Result 119 states and 181 transitions. [2024-10-23 22:23:48,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 22:23:48,459 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2024-10-23 22:23:48,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:23:48,466 INFO L225 Difference]: With dead ends: 119 [2024-10-23 22:23:48,466 INFO L226 Difference]: Without dead ends: 58 [2024-10-23 22:23:48,469 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 [2024-10-23 22:23:48,472 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 22:23:48,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 22:23:48,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-23 22:23:48,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-10-23 22:23:48,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 57 states have internal predecessors, (81), 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) [2024-10-23 22:23:48,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 81 transitions. [2024-10-23 22:23:48,506 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 81 transitions. Word has length 11 [2024-10-23 22:23:48,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:23:48,506 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 81 transitions. [2024-10-23 22:23:48,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2024-10-23 22:23:48,506 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 81 transitions. [2024-10-23 22:23:48,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-23 22:23:48,508 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:23:48,508 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:23:48,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 22:23:48,509 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:23:48,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:23:48,509 INFO L85 PathProgramCache]: Analyzing trace with hash 2089481693, now seen corresponding path program 1 times [2024-10-23 22:23:48,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 22:23:48,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755391941] [2024-10-23 22:23:48,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:23:48,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 22:23:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:23:48,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:23:48,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 22:23:48,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755391941] [2024-10-23 22:23:48,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755391941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:23:48,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:23:48,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 22:23:48,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84789468] [2024-10-23 22:23:48,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:23:48,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 22:23:48,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 22:23:48,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 22:23:48,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 22:23:48,642 INFO L87 Difference]: Start difference. First operand 58 states and 81 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2024-10-23 22:23:48,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:23:48,713 INFO L93 Difference]: Finished difference Result 110 states and 154 transitions. [2024-10-23 22:23:48,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 22:23:48,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 [2024-10-23 22:23:48,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:23:48,715 INFO L225 Difference]: With dead ends: 110 [2024-10-23 22:23:48,715 INFO L226 Difference]: Without dead ends: 62 [2024-10-23 22:23:48,716 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 [2024-10-23 22:23:48,717 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 2 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-23 22:23:48,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 205 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-23 22:23:48,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-23 22:23:48,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-10-23 22:23:48,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 61 states have internal predecessors, (85), 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) [2024-10-23 22:23:48,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 85 transitions. [2024-10-23 22:23:48,723 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 85 transitions. Word has length 12 [2024-10-23 22:23:48,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:23:48,724 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 85 transitions. [2024-10-23 22:23:48,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2024-10-23 22:23:48,724 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 85 transitions. [2024-10-23 22:23:48,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-23 22:23:48,725 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:23:48,725 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:23:48,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 22:23:48,725 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:23:48,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:23:48,726 INFO L85 PathProgramCache]: Analyzing trace with hash 775388677, now seen corresponding path program 1 times [2024-10-23 22:23:48,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 22:23:48,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824584035] [2024-10-23 22:23:48,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:23:48,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 22:23:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:23:48,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:23:48,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 22:23:48,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824584035] [2024-10-23 22:23:48,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824584035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:23:48,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:23:48,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 22:23:48,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654954343] [2024-10-23 22:23:48,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:23:48,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 22:23:48,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 22:23:48,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 22:23:48,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 22:23:48,909 INFO L87 Difference]: Start difference. First operand 62 states and 85 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:23:48,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:23:48,990 INFO L93 Difference]: Finished difference Result 114 states and 158 transitions. [2024-10-23 22:23:48,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 22:23:48,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-23 22:23:48,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:23:48,993 INFO L225 Difference]: With dead ends: 114 [2024-10-23 22:23:48,993 INFO L226 Difference]: Without dead ends: 66 [2024-10-23 22:23:48,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 22:23:48,994 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-23 22:23:48,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 206 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-23 22:23:48,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-23 22:23:49,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-10-23 22:23:49,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 65 states have internal predecessors, (89), 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) [2024-10-23 22:23:49,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 89 transitions. [2024-10-23 22:23:49,001 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 89 transitions. Word has length 13 [2024-10-23 22:23:49,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:23:49,001 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 89 transitions. [2024-10-23 22:23:49,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:23:49,001 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 89 transitions. [2024-10-23 22:23:49,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-23 22:23:49,001 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:23:49,002 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:23:49,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 22:23:49,002 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:23:49,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:23:49,002 INFO L85 PathProgramCache]: Analyzing trace with hash 773541635, now seen corresponding path program 1 times [2024-10-23 22:23:49,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 22:23:49,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578989416] [2024-10-23 22:23:49,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:23:49,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 22:23:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-23 22:23:49,024 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-23 22:23:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-23 22:23:49,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-23 22:23:49,054 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-23 22:23:49,056 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 22:23:49,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 22:23:49,059 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-23 22:23:49,082 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 22:23:49,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:23:49 BoogieIcfgContainer [2024-10-23 22:23:49,089 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 22:23:49,089 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 22:23:49,089 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 22:23:49,090 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 22:23:49,090 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:23:48" (3/4) ... [2024-10-23 22:23:49,092 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-23 22:23:49,093 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 22:23:49,094 INFO L158 Benchmark]: Toolchain (without parser) took 1868.68ms. Allocated memory is still 155.2MB. Free memory was 87.7MB in the beginning and 116.8MB in the end (delta: -29.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:23:49,095 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory was 112.7MB in the beginning and 112.5MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:23:49,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.69ms. Allocated memory is still 155.2MB. Free memory was 87.6MB in the beginning and 124.8MB in the end (delta: -37.3MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-10-23 22:23:49,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.22ms. Allocated memory is still 155.2MB. Free memory was 124.8MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-23 22:23:49,096 INFO L158 Benchmark]: Boogie Preprocessor took 38.04ms. Allocated memory is still 155.2MB. Free memory was 122.7MB in the beginning and 119.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-23 22:23:49,096 INFO L158 Benchmark]: RCFGBuilder took 556.20ms. Allocated memory is still 155.2MB. Free memory was 119.5MB in the beginning and 97.6MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-23 22:23:49,098 INFO L158 Benchmark]: TraceAbstraction took 920.71ms. Allocated memory is still 155.2MB. Free memory was 97.0MB in the beginning and 116.8MB in the end (delta: -19.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:23:49,098 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 155.2MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:23:49,099 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory was 112.7MB in the beginning and 112.5MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.69ms. Allocated memory is still 155.2MB. Free memory was 87.6MB in the beginning and 124.8MB in the end (delta: -37.3MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.22ms. Allocated memory is still 155.2MB. Free memory was 124.8MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.04ms. Allocated memory is still 155.2MB. Free memory was 122.7MB in the beginning and 119.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 556.20ms. Allocated memory is still 155.2MB. Free memory was 119.5MB in the beginning and 97.6MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 920.71ms. Allocated memory is still 155.2MB. Free memory was 97.0MB in the beginning and 116.8MB in the end (delta: -19.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 155.2MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 93]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 92, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45. Possible FailurePath: [L88] double x = 0.0; [L89] CALL, EXPR round_double(x) [L20] __int32_t msw, exponent_less_1023; [L21] __uint32_t lsw; VAL [x=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L28] EXPR msw & 0x7ff00000 VAL [lsw=6441402369, msw=2146435072, x=0] [L28] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L29] COND FALSE !(exponent_less_1023 < 20) VAL [exponent_less_1023=1024, lsw=6441402369, msw=2146435072, x=0] [L43] COND TRUE exponent_less_1023 > 51 VAL [exponent_less_1023=1024, lsw=6441402369, msw=2146435072, x=0] [L44] COND TRUE exponent_less_1023 == 1024 [L45] return x + x; VAL [lsw=6441402369, msw=2146435072, x=0] [L89] RET, EXPR round_double(x) [L89] double res = round_double(x); [L92] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=6441402378] [L92] EXPR res == 0.0 && __signbit_double(res) == 0 [L92] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L93] reach_error() VAL [res=6441402378] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 491 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 260 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 78 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 231 mSDtfsCounter, 78 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=3, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-23 22:23:49,124 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_1032a.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 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 22:23:51,048 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 22:23:51,116 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-23 22:23:51,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 22:23:51,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 22:23:51,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 22:23:51,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 22:23:51,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 22:23:51,147 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 22:23:51,148 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 22:23:51,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 22:23:51,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 22:23:51,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 22:23:51,150 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 22:23:51,150 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 22:23:51,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 22:23:51,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 22:23:51,153 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 22:23:51,153 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 22:23:51,153 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 22:23:51,154 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 22:23:51,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 22:23:51,156 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 22:23:51,157 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-23 22:23:51,157 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-23 22:23:51,157 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 22:23:51,157 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-23 22:23:51,158 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 22:23:51,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 22:23:51,159 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 22:23:51,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 22:23:51,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 22:23:51,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 22:23:51,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 22:23:51,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:23:51,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 22:23:51,161 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 22:23:51,161 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 22:23:51,161 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-23 22:23:51,162 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-23 22:23:51,162 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 22:23:51,162 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 22:23:51,162 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 22:23:51,162 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 22:23:51,163 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-23 22:23:51,163 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 [2024-10-23 22:23:51,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 22:23:51,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 22:23:51,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 22:23:51,472 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 22:23:51,473 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 22:23:51,475 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2024-10-23 22:23:52,815 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 22:23:52,988 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 22:23:52,989 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2024-10-23 22:23:53,002 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54defb364/0ba453f616374ac7a497f62e2c1b010b/FLAG0b43b3724 [2024-10-23 22:23:53,017 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54defb364/0ba453f616374ac7a497f62e2c1b010b [2024-10-23 22:23:53,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 22:23:53,022 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 22:23:53,024 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 22:23:53,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 22:23:53,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 22:23:53,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bae3b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53, skipping insertion in model container [2024-10-23 22:23:53,031 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 22:23:53,239 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_1032a.c[2282,2295] [2024-10-23 22:23:53,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:23:53,255 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 22:23:53,286 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_1032a.c[2282,2295] [2024-10-23 22:23:53,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:23:53,319 INFO L204 MainTranslator]: Completed translation [2024-10-23 22:23:53,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53 WrapperNode [2024-10-23 22:23:53,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 22:23:53,321 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 22:23:53,321 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 22:23:53,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 22:23:53,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,356 INFO L138 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 110 [2024-10-23 22:23:53,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 22:23:53,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 22:23:53,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 22:23:53,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 22:23:53,371 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,380 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,404 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 2, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 2]. [2024-10-23 22:23:53,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 22:23:53,426 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 22:23:53,426 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 22:23:53,426 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 22:23:53,427 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53" (1/1) ... [2024-10-23 22:23:53,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:23:53,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 22:23:53,459 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) [2024-10-23 22:23:53,462 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 [2024-10-23 22:23:53,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 22:23:53,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-10-23 22:23:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-10-23 22:23:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-10-23 22:23:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-10-23 22:23:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-10-23 22:23:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-10-23 22:23:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-10-23 22:23:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-10-23 22:23:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-23 22:23:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-23 22:23:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-23 22:23:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-23 22:23:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-23 22:23:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-23 22:23:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-23 22:23:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-23 22:23:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-23 22:23:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 22:23:53,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 22:23:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-23 22:23:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-23 22:23:53,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-23 22:23:53,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-23 22:23:53,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-23 22:23:53,596 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 22:23:53,598 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 22:23:53,887 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-10-23 22:23:53,888 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 22:23:53,915 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 22:23:53,916 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-23 22:23:53,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:23:53 BoogieIcfgContainer [2024-10-23 22:23:53,917 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 22:23:53,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 22:23:53,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 22:23:53,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 22:23:53,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:23:53" (1/3) ... [2024-10-23 22:23:53,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c59adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:23:53, skipping insertion in model container [2024-10-23 22:23:53,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:53" (2/3) ... [2024-10-23 22:23:53,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c59adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:23:53, skipping insertion in model container [2024-10-23 22:23:53,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:23:53" (3/3) ... [2024-10-23 22:23:53,927 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a.c [2024-10-23 22:23:53,942 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 22:23:53,943 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 22:23:54,009 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 22:23:54,015 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;@45a0f755, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 22:23:54,016 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 22:23:54,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.68) internal successors, (42), 26 states have internal predecessors, (42), 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) [2024-10-23 22:23:54,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-23 22:23:54,025 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:23:54,025 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:23:54,026 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:23:54,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:23:54,032 INFO L85 PathProgramCache]: Analyzing trace with hash 983063678, now seen corresponding path program 1 times [2024-10-23 22:23:54,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-23 22:23:54,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107905506] [2024-10-23 22:23:54,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:23:54,043 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 [2024-10-23 22:23:54,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-23 22:23:54,046 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) [2024-10-23 22:23:54,047 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 [2024-10-23 22:23:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:23:54,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-23 22:23:54,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 22:23:54,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:23:54,139 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 22:23:54,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-23 22:23:54,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107905506] [2024-10-23 22:23:54,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107905506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:23:54,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:23:54,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 22:23:54,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548062324] [2024-10-23 22:23:54,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:23:54,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 22:23:54,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-23 22:23:54,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 22:23:54,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 22:23:54,171 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.68) internal successors, (42), 26 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 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) [2024-10-23 22:23:54,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:23:54,193 INFO L93 Difference]: Finished difference Result 53 states and 83 transitions. [2024-10-23 22:23:54,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 22:23:54,195 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 [2024-10-23 22:23:54,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:23:54,202 INFO L225 Difference]: With dead ends: 53 [2024-10-23 22:23:54,202 INFO L226 Difference]: Without dead ends: 25 [2024-10-23 22:23:54,205 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 [2024-10-23 22:23:54,209 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 22:23:54,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 22:23:54,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-10-23 22:23:54,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-10-23 22:23:54,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 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) [2024-10-23 22:23:54,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2024-10-23 22:23:54,238 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 10 [2024-10-23 22:23:54,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:23:54,239 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2024-10-23 22:23:54,240 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) [2024-10-23 22:23:54,240 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2024-10-23 22:23:54,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-23 22:23:54,241 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:23:54,241 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:23:54,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-10-23 22:23:54,442 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 [2024-10-23 22:23:54,442 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:23:54,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:23:54,443 INFO L85 PathProgramCache]: Analyzing trace with hash -885713015, now seen corresponding path program 1 times [2024-10-23 22:23:54,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-23 22:23:54,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008169010] [2024-10-23 22:23:54,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:23:54,444 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 [2024-10-23 22:23:54,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-23 22:23:54,448 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) [2024-10-23 22:23:54,453 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 [2024-10-23 22:23:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:23:54,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-23 22:23:54,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 22:23:54,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:23:54,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 22:23:54,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-23 22:23:54,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008169010] [2024-10-23 22:23:54,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2008169010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:23:54,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:23:54,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 22:23:54,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899027636] [2024-10-23 22:23:54,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:23:54,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-23 22:23:54,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-23 22:23:54,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-23 22:23:54,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-23 22:23:54,655 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-10-23 22:23:54,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:23:54,771 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2024-10-23 22:23:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-23 22:23:54,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2024-10-23 22:23:54,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:23:54,772 INFO L225 Difference]: With dead ends: 37 [2024-10-23 22:23:54,772 INFO L226 Difference]: Without dead ends: 19 [2024-10-23 22:23:54,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-23 22:23:54,773 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-23 22:23:54,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 34 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-23 22:23:54,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-10-23 22:23:54,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-10-23 22:23:54,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:23:54,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2024-10-23 22:23:54,789 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 11 [2024-10-23 22:23:54,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:23:54,789 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2024-10-23 22:23:54,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-10-23 22:23:54,789 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2024-10-23 22:23:54,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-23 22:23:54,790 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:23:54,790 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:23:54,795 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 [2024-10-23 22:23:54,990 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 [2024-10-23 22:23:54,991 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:23:54,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:23:54,991 INFO L85 PathProgramCache]: Analyzing trace with hash 527470868, now seen corresponding path program 1 times [2024-10-23 22:23:54,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-23 22:23:54,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038505581] [2024-10-23 22:23:54,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:23:54,992 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 [2024-10-23 22:23:54,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-23 22:23:54,995 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) [2024-10-23 22:23:54,999 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 [2024-10-23 22:23:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:23:55,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-23 22:23:55,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 22:23:55,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:23:55,204 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 22:23:55,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-23 22:23:55,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038505581] [2024-10-23 22:23:55,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038505581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:23:55,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:23:55,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-23 22:23:55,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78973861] [2024-10-23 22:23:55,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:23:55,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-23 22:23:55,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-23 22:23:55,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-23 22:23:55,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-23 22:23:55,206 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2024-10-23 22:23:55,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:23:55,348 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2024-10-23 22:23:55,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-23 22:23:55,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) Word has length 15 [2024-10-23 22:23:55,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:23:55,350 INFO L225 Difference]: With dead ends: 22 [2024-10-23 22:23:55,350 INFO L226 Difference]: Without dead ends: 19 [2024-10-23 22:23:55,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-23 22:23:55,351 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 14 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-23 22:23:55,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 38 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-23 22:23:55,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-10-23 22:23:55,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-10-23 22:23:55,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 states have internal predecessors, (18), 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) [2024-10-23 22:23:55,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2024-10-23 22:23:55,357 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 15 [2024-10-23 22:23:55,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:23:55,357 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2024-10-23 22:23:55,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2024-10-23 22:23:55,358 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2024-10-23 22:23:55,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-23 22:23:55,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:23:55,358 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:23:55,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-23 22:23:55,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-23 22:23:55,559 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:23:55,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:23:55,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1903412056, now seen corresponding path program 1 times [2024-10-23 22:23:55,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-23 22:23:55,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690465948] [2024-10-23 22:23:55,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:23:55,560 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 [2024-10-23 22:23:55,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-23 22:23:55,563 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-23 22:23:55,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-23 22:23:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:23:55,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-23 22:23:55,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 22:23:56,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:23:56,017 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 22:23:56,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-23 22:23:56,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690465948] [2024-10-23 22:23:56,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690465948] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:23:56,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:23:56,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-23 22:23:56,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208344122] [2024-10-23 22:23:56,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:23:56,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-23 22:23:56,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-23 22:23:56,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-23 22:23:56,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-23 22:23:56,019 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 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) [2024-10-23 22:23:56,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:23:56,292 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2024-10-23 22:23:56,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-23 22:23:56,293 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 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 18 [2024-10-23 22:23:56,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:23:56,294 INFO L225 Difference]: With dead ends: 19 [2024-10-23 22:23:56,294 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 22:23:56,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-10-23 22:23:56,295 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-23 22:23:56,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 38 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-23 22:23:56,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 22:23:56,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 22:23:56,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:23:56,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 22:23:56,296 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-10-23 22:23:56,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:23:56,296 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 22:23:56,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 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) [2024-10-23 22:23:56,296 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 22:23:56,296 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 22:23:56,299 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 22:23:56,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-23 22:23:56,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-23 22:23:56,502 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-23 22:23:56,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 22:23:56,559 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 22:23:56,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:23:56 BoogieIcfgContainer [2024-10-23 22:23:56,573 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 22:23:56,574 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 22:23:56,574 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 22:23:56,574 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 22:23:56,574 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:23:53" (3/4) ... [2024-10-23 22:23:56,576 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 22:23:56,584 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-10-23 22:23:56,584 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-23 22:23:56,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-23 22:23:56,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 22:23:56,705 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 22:23:56,705 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 22:23:56,706 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 22:23:56,706 INFO L158 Benchmark]: Toolchain (without parser) took 3684.74ms. Allocated memory was 65.0MB in the beginning and 98.6MB in the end (delta: 33.6MB). Free memory was 42.2MB in the beginning and 72.7MB in the end (delta: -30.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2024-10-23 22:23:56,707 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 65.0MB. Free memory was 41.6MB in the beginning and 41.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:23:56,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.50ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 41.9MB in the beginning and 62.2MB in the end (delta: -20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-23 22:23:56,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.84ms. Allocated memory is still 81.8MB. Free memory was 62.2MB in the beginning and 60.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:23:56,709 INFO L158 Benchmark]: Boogie Preprocessor took 64.31ms. Allocated memory is still 81.8MB. Free memory was 60.5MB in the beginning and 57.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-23 22:23:56,710 INFO L158 Benchmark]: RCFGBuilder took 491.49ms. Allocated memory is still 81.8MB. Free memory was 57.4MB in the beginning and 40.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-23 22:23:56,710 INFO L158 Benchmark]: TraceAbstraction took 2653.28ms. Allocated memory is still 81.8MB. Free memory was 39.1MB in the beginning and 57.6MB in the end (delta: -18.4MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2024-10-23 22:23:56,710 INFO L158 Benchmark]: Witness Printer took 132.04ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 57.6MB in the beginning and 72.7MB in the end (delta: -15.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-23 22:23:56,714 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 65.0MB. Free memory was 41.6MB in the beginning and 41.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.50ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 41.9MB in the beginning and 62.2MB in the end (delta: -20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.84ms. Allocated memory is still 81.8MB. Free memory was 62.2MB in the beginning and 60.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.31ms. Allocated memory is still 81.8MB. Free memory was 60.5MB in the beginning and 57.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 491.49ms. Allocated memory is still 81.8MB. Free memory was 57.4MB in the beginning and 40.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2653.28ms. Allocated memory is still 81.8MB. Free memory was 39.1MB in the beginning and 57.6MB in the end (delta: -18.4MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Witness Printer took 132.04ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 57.6MB in the beginning and 72.7MB in the end (delta: -15.1MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 93]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 142 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 132 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 58 mSDtfsCounter, 132 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 50 ConstructedInterpolants, 24 QuantifiedInterpolants, 518 SizeOfPredicates, 15 NumberOfNonLiveVariables, 193 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-10-23 22:23:56,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE