./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_1051.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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_1051.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 22112bf5fec517f156789ccf9f4e6d3a5bacd7e511b4f0e72a5035e85c02df36 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 19:24:21,044 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 19:24:21,131 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 19:24:21,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 19:24:21,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 19:24:21,175 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 19:24:21,176 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 19:24:21,176 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 19:24:21,177 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 19:24:21,178 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 19:24:21,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 19:24:21,179 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 19:24:21,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 19:24:21,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 19:24:21,182 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 19:24:21,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 19:24:21,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 19:24:21,183 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 19:24:21,183 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 19:24:21,183 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 19:24:21,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 19:24:21,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 19:24:21,188 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 19:24:21,188 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 19:24:21,188 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 19:24:21,188 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 19:24:21,189 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 19:24:21,189 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 19:24:21,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 19:24:21,190 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 19:24:21,190 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 19:24:21,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 19:24:21,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:24:21,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 19:24:21,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 19:24:21,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 19:24:21,191 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 19:24:21,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 19:24:21,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 19:24:21,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 19:24:21,192 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 19:24:21,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 19:24:21,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22112bf5fec517f156789ccf9f4e6d3a5bacd7e511b4f0e72a5035e85c02df36 [2024-11-19 19:24:21,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 19:24:21,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 19:24:21,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 19:24:21,463 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 19:24:21,464 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 19:24:21,465 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2024-11-19 19:24:22,935 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 19:24:23,103 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 19:24:23,103 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2024-11-19 19:24:23,110 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a464b98d4/a118951206a04d57a34a84447ade4696/FLAG3b7cf4a62 [2024-11-19 19:24:23,508 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a464b98d4/a118951206a04d57a34a84447ade4696 [2024-11-19 19:24:23,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 19:24:23,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 19:24:23,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 19:24:23,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 19:24:23,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 19:24:23,521 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc4f6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23, skipping insertion in model container [2024-11-19 19:24:23,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,549 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 19:24:23,755 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1051.c[2106,2119] [2024-11-19 19:24:23,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:24:23,769 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 19:24:23,796 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1051.c[2106,2119] [2024-11-19 19:24:23,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:24:23,818 INFO L204 MainTranslator]: Completed translation [2024-11-19 19:24:23,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23 WrapperNode [2024-11-19 19:24:23,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 19:24:23,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 19:24:23,821 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 19:24:23,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 19:24:23,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,870 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 176 [2024-11-19 19:24:23,871 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 19:24:23,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 19:24:23,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 19:24:23,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 19:24:23,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,886 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,907 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 3, 3]. 38 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 1, 2]. [2024-11-19 19:24:23,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,921 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,929 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,941 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 19:24:23,942 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 19:24:23,942 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 19:24:23,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 19:24:23,943 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23" (1/1) ... [2024-11-19 19:24:23,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:24:23,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 19:24:23,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 19:24:23,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 19:24:24,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 19:24:24,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 19:24:24,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 19:24:24,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 19:24:24,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 19:24:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 19:24:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 19:24:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 19:24:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 19:24:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 19:24:24,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 19:24:24,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 19:24:24,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 19:24:24,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 19:24:24,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 19:24:24,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 19:24:24,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 19:24:24,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 19:24:24,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 19:24:24,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 19:24:24,154 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 19:24:24,157 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 19:24:24,472 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-19 19:24:24,472 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 19:24:24,491 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 19:24:24,492 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-19 19:24:24,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:24:24 BoogieIcfgContainer [2024-11-19 19:24:24,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 19:24:24,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 19:24:24,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 19:24:24,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 19:24:24,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:24:23" (1/3) ... [2024-11-19 19:24:24,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105549e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:24:24, skipping insertion in model container [2024-11-19 19:24:24,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:23" (2/3) ... [2024-11-19 19:24:24,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105549e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:24:24, skipping insertion in model container [2024-11-19 19:24:24,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:24:24" (3/3) ... [2024-11-19 19:24:24,503 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2024-11-19 19:24:24,517 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 19:24:24,517 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 19:24:24,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 19:24:24,579 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;@1df8e942, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 19:24:24,579 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 19:24:24,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 62 states have (on average 1.596774193548387) internal successors, (99), 63 states have internal predecessors, (99), 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) [2024-11-19 19:24:24,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-19 19:24:24,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:24:24,591 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:24:24,592 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:24:24,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:24:24,596 INFO L85 PathProgramCache]: Analyzing trace with hash 230345853, now seen corresponding path program 1 times [2024-11-19 19:24:24,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 19:24:24,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191480652] [2024-11-19 19:24:24,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:24:24,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 19:24:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:24:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:24:24,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 19:24:24,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191480652] [2024-11-19 19:24:24,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191480652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:24:24,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:24:24,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 19:24:24,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82603415] [2024-11-19 19:24:24,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:24:24,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 19:24:24,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 19:24:24,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 19:24:24,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:24:24,836 INFO L87 Difference]: Start difference. First operand has 64 states, 62 states have (on average 1.596774193548387) internal successors, (99), 63 states have internal predecessors, (99), 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) [2024-11-19 19:24:24,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:24:24,857 INFO L93 Difference]: Finished difference Result 126 states and 196 transitions. [2024-11-19 19:24:24,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 19:24:24,859 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 [2024-11-19 19:24:24,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:24:24,865 INFO L225 Difference]: With dead ends: 126 [2024-11-19 19:24:24,865 INFO L226 Difference]: Without dead ends: 61 [2024-11-19 19:24:24,868 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 [2024-11-19 19:24:24,870 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 19:24:24,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 19:24:24,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-19 19:24:24,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-19 19:24:24,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.5166666666666666) internal successors, (91), 60 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) [2024-11-19 19:24:24,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 91 transitions. [2024-11-19 19:24:24,904 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 91 transitions. Word has length 11 [2024-11-19 19:24:24,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:24:24,904 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 91 transitions. [2024-11-19 19:24:24,904 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) [2024-11-19 19:24:24,904 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 91 transitions. [2024-11-19 19:24:24,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-19 19:24:24,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:24:24,905 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:24:24,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 19:24:24,906 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:24:24,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:24:24,907 INFO L85 PathProgramCache]: Analyzing trace with hash 850266778, now seen corresponding path program 1 times [2024-11-19 19:24:24,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 19:24:24,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034434977] [2024-11-19 19:24:24,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:24:24,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 19:24:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:24:24,971 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 19:24:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:24:25,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 19:24:25,036 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 19:24:25,038 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 19:24:25,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 19:24:25,043 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-19 19:24:25,059 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 19:24:25,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:24:25 BoogieIcfgContainer [2024-11-19 19:24:25,068 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 19:24:25,068 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 19:24:25,069 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 19:24:25,069 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 19:24:25,070 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:24:24" (3/4) ... [2024-11-19 19:24:25,073 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 19:24:25,074 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 19:24:25,074 INFO L158 Benchmark]: Toolchain (without parser) took 1562.80ms. Allocated memory is still 172.0MB. Free memory was 118.7MB in the beginning and 120.9MB in the end (delta: -2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:24:25,075 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 172.0MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:24:25,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.86ms. Allocated memory is still 172.0MB. Free memory was 118.7MB in the beginning and 104.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-19 19:24:25,075 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.22ms. Allocated memory is still 172.0MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:24:25,076 INFO L158 Benchmark]: Boogie Preprocessor took 69.25ms. Allocated memory is still 172.0MB. Free memory was 102.4MB in the beginning and 99.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:24:25,076 INFO L158 Benchmark]: RCFGBuilder took 550.90ms. Allocated memory is still 172.0MB. Free memory was 99.3MB in the beginning and 78.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-19 19:24:25,078 INFO L158 Benchmark]: TraceAbstraction took 570.79ms. Allocated memory is still 172.0MB. Free memory was 77.8MB in the beginning and 121.1MB in the end (delta: -43.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:24:25,078 INFO L158 Benchmark]: Witness Printer took 5.45ms. Allocated memory is still 172.0MB. Free memory was 121.1MB in the beginning and 120.9MB in the end (delta: 179.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:24:25,081 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 172.0MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.86ms. Allocated memory is still 172.0MB. Free memory was 118.7MB in the beginning and 104.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.22ms. Allocated memory is still 172.0MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.25ms. Allocated memory is still 172.0MB. Free memory was 102.4MB in the beginning and 99.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 550.90ms. Allocated memory is still 172.0MB. Free memory was 99.3MB in the beginning and 78.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 570.79ms. Allocated memory is still 172.0MB. Free memory was 77.8MB in the beginning and 121.1MB in the end (delta: -43.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.45ms. Allocated memory is still 172.0MB. Free memory was 121.1MB in the beginning and 120.9MB in the end (delta: 179.3kB). 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: 95]: 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 82, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L90] double x = 0.0 / 0.0; [L91] CALL, EXPR floor_double(x) [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1048576, i1=-1, j0=1024, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L28] COND FALSE !(j0 < 20) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1048576, i1=-1, j0=1024, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L49] COND TRUE j0 > 51 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1048576, i1=-1, j0=1024, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L50] COND TRUE j0 == 0x400 [L51] return x + x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1048576, i1=-1, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L91] RET, EXPR floor_double(x) [L91] double res = floor_double(x); [L94] CALL, EXPR isnan_double(res) [L82] return x != x; VAL [\result=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] RET, EXPR isnan_double(res) [L94] COND TRUE !isnan_double(res) [L95] reach_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 94 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-19 19:24:25,110 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_1051.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 22112bf5fec517f156789ccf9f4e6d3a5bacd7e511b4f0e72a5035e85c02df36 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 19:24:27,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 19:24:27,382 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-19 19:24:27,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 19:24:27,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 19:24:27,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 19:24:27,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 19:24:27,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 19:24:27,422 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 19:24:27,423 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 19:24:27,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 19:24:27,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 19:24:27,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 19:24:27,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 19:24:27,425 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 19:24:27,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 19:24:27,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 19:24:27,426 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 19:24:27,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 19:24:27,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 19:24:27,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 19:24:27,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 19:24:27,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 19:24:27,432 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 19:24:27,432 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-19 19:24:27,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 19:24:27,433 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-19 19:24:27,433 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 19:24:27,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 19:24:27,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 19:24:27,434 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 19:24:27,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 19:24:27,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 19:24:27,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 19:24:27,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:24:27,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 19:24:27,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 19:24:27,438 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 19:24:27,438 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-19 19:24:27,438 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-19 19:24:27,438 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 19:24:27,439 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 19:24:27,439 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 19:24:27,439 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 19:24:27,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22112bf5fec517f156789ccf9f4e6d3a5bacd7e511b4f0e72a5035e85c02df36 [2024-11-19 19:24:27,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 19:24:27,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 19:24:27,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 19:24:27,765 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 19:24:27,765 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 19:24:27,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2024-11-19 19:24:29,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 19:24:29,539 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 19:24:29,539 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2024-11-19 19:24:29,546 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d58ea665/48d3ffaa890d4632bbe53be9db91c258/FLAG56a48ecde [2024-11-19 19:24:29,559 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d58ea665/48d3ffaa890d4632bbe53be9db91c258 [2024-11-19 19:24:29,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 19:24:29,564 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 19:24:29,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 19:24:29,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 19:24:29,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 19:24:29,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:29,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@932ccf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29, skipping insertion in model container [2024-11-19 19:24:29,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:29,597 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 19:24:29,812 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1051.c[2106,2119] [2024-11-19 19:24:29,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:24:29,832 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 19:24:29,870 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1051.c[2106,2119] [2024-11-19 19:24:29,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:24:29,895 INFO L204 MainTranslator]: Completed translation [2024-11-19 19:24:29,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29 WrapperNode [2024-11-19 19:24:29,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 19:24:29,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 19:24:29,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 19:24:29,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 19:24:29,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:29,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:29,937 INFO L138 Inliner]: procedures = 19, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 101 [2024-11-19 19:24:29,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 19:24:29,941 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 19:24:29,941 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 19:24:29,941 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 19:24:29,952 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:29,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:29,955 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:29,982 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 3, 3]. 38 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 2, 1]. [2024-11-19 19:24:29,982 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:29,982 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:29,995 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:30,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:30,007 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:30,009 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:30,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 19:24:30,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 19:24:30,018 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 19:24:30,018 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 19:24:30,019 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29" (1/1) ... [2024-11-19 19:24:30,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:24:30,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 19:24:30,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 19:24:30,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 19:24:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 19:24:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-19 19:24:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-19 19:24:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-19 19:24:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-19 19:24:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-19 19:24:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-19 19:24:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-19 19:24:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-19 19:24:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-19 19:24:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 19:24:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-19 19:24:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-19 19:24:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-19 19:24:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 19:24:30,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 19:24:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-19 19:24:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-19 19:24:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-19 19:24:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 19:24:30,223 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 19:24:30,226 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 19:24:31,338 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-19 19:24:31,338 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 19:24:31,355 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 19:24:31,355 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-19 19:24:31,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:24:31 BoogieIcfgContainer [2024-11-19 19:24:31,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 19:24:31,358 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 19:24:31,359 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 19:24:31,362 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 19:24:31,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:24:29" (1/3) ... [2024-11-19 19:24:31,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646e9930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:24:31, skipping insertion in model container [2024-11-19 19:24:31,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:29" (2/3) ... [2024-11-19 19:24:31,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646e9930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:24:31, skipping insertion in model container [2024-11-19 19:24:31,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:24:31" (3/3) ... [2024-11-19 19:24:31,365 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2024-11-19 19:24:31,379 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 19:24:31,379 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 19:24:31,443 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 19:24:31,449 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;@7a4eb552, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 19:24:31,451 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 19:24:31,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 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) [2024-11-19 19:24:31,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-19 19:24:31,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:24:31,462 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:24:31,463 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:24:31,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:24:31,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2024-11-19 19:24:31,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:24:31,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136536811] [2024-11-19 19:24:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:24:31,480 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-19 19:24:31,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:24:31,484 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-19 19:24:31,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-19 19:24:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:24:31,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 19:24:31,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:24:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:24:31,606 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 19:24:31,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 19:24:31,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136536811] [2024-11-19 19:24:31,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136536811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:24:31,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:24:31,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 19:24:31,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366518160] [2024-11-19 19:24:31,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:24:31,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 19:24:31,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 19:24:31,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 19:24:31,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:24:31,635 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 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) [2024-11-19 19:24:31,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:24:31,648 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2024-11-19 19:24:31,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 19:24:31,650 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 [2024-11-19 19:24:31,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:24:31,656 INFO L225 Difference]: With dead ends: 66 [2024-11-19 19:24:31,656 INFO L226 Difference]: Without dead ends: 31 [2024-11-19 19:24:31,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:24:31,661 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 19:24:31,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 19:24:31,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-19 19:24:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-19 19:24:31,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 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) [2024-11-19 19:24:31,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2024-11-19 19:24:31,686 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2024-11-19 19:24:31,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:24:31,686 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2024-11-19 19:24:31,686 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) [2024-11-19 19:24:31,686 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2024-11-19 19:24:31,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-19 19:24:31,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:24:31,687 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:24:31,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-19 19:24:31,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-19 19:24:31,889 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:24:31,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:24:31,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2024-11-19 19:24:31,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:24:31,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4302573] [2024-11-19 19:24:31,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:24:31,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-19 19:24:31,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:24:31,894 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-19 19:24:31,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-19 19:24:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:24:32,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 19:24:32,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:24:32,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:24:32,225 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 19:24:32,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 19:24:32,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4302573] [2024-11-19 19:24:32,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4302573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:24:32,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:24:32,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 19:24:32,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579831914] [2024-11-19 19:24:32,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:24:32,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 19:24:32,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 19:24:32,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 19:24:32,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 19:24:32,229 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2024-11-19 19:24:32,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:24:32,870 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2024-11-19 19:24:32,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 19:24:32,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 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 [2024-11-19 19:24:32,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:24:32,871 INFO L225 Difference]: With dead ends: 42 [2024-11-19 19:24:32,871 INFO L226 Difference]: Without dead ends: 21 [2024-11-19 19:24:32,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 19:24:32,873 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 19:24:32,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 68 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 2 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 19:24:32,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-19 19:24:32,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-19 19:24:32,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 19:24:32,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2024-11-19 19:24:32,876 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2024-11-19 19:24:32,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:24:32,877 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2024-11-19 19:24:32,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2024-11-19 19:24:32,877 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2024-11-19 19:24:32,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-19 19:24:32,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:24:32,878 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:24:32,882 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 (3)] Forceful destruction successful, exit code 0 [2024-11-19 19:24:33,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-19 19:24:33,079 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:24:33,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:24:33,080 INFO L85 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2024-11-19 19:24:33,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:24:33,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315225409] [2024-11-19 19:24:33,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:24:33,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-19 19:24:33,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:24:33,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-19 19:24:33,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-19 19:24:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:24:33,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 19:24:33,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:24:33,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:24:33,428 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 19:24:33,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 19:24:33,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315225409] [2024-11-19 19:24:33,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315225409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:24:33,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:24:33,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 19:24:33,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678944568] [2024-11-19 19:24:33,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:24:33,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 19:24:33,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 19:24:33,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 19:24:33,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 19:24:33,430 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2024-11-19 19:24:33,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:24:33,605 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2024-11-19 19:24:33,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 19:24:33,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 [2024-11-19 19:24:33,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:24:33,606 INFO L225 Difference]: With dead ends: 21 [2024-11-19 19:24:33,606 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 19:24:33,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 19:24:33,607 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 19:24:33,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 19:24:33,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 19:24:33,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 19:24:33,609 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) [2024-11-19 19:24:33,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 19:24:33,612 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2024-11-19 19:24:33,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:24:33,612 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 19:24:33,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2024-11-19 19:24:33,613 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 19:24:33,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 19:24:33,615 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 19:24:33,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-19 19:24:33,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-19 19:24:33,819 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-19 19:24:33,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 19:24:33,836 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 19:24:33,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:24:33 BoogieIcfgContainer [2024-11-19 19:24:33,846 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 19:24:33,847 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 19:24:33,847 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 19:24:33,847 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 19:24:33,848 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:24:31" (3/4) ... [2024-11-19 19:24:33,850 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 19:24:33,863 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-19 19:24:33,863 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-19 19:24:33,863 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 19:24:33,864 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 19:24:33,961 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 19:24:33,961 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 19:24:33,961 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 19:24:33,962 INFO L158 Benchmark]: Toolchain (without parser) took 4398.82ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 45.4MB in the beginning and 57.1MB in the end (delta: -11.6MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2024-11-19 19:24:33,963 INFO L158 Benchmark]: CDTParser took 1.02ms. Allocated memory is still 54.5MB. Free memory is still 37.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:24:33,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.16ms. Allocated memory is still 71.3MB. Free memory was 45.2MB in the beginning and 48.9MB in the end (delta: -3.7MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2024-11-19 19:24:33,963 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.93ms. Allocated memory is still 71.3MB. Free memory was 48.9MB in the beginning and 47.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:24:33,963 INFO L158 Benchmark]: Boogie Preprocessor took 76.14ms. Allocated memory is still 71.3MB. Free memory was 47.2MB in the beginning and 44.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:24:33,964 INFO L158 Benchmark]: RCFGBuilder took 1339.16ms. Allocated memory is still 71.3MB. Free memory was 44.5MB in the beginning and 28.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-19 19:24:33,964 INFO L158 Benchmark]: TraceAbstraction took 2487.72ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 27.9MB in the beginning and 61.8MB in the end (delta: -33.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:24:33,965 INFO L158 Benchmark]: Witness Printer took 115.26ms. Allocated memory is still 86.0MB. Free memory was 61.8MB in the beginning and 57.1MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 19:24:33,966 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02ms. Allocated memory is still 54.5MB. Free memory is still 37.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.16ms. Allocated memory is still 71.3MB. Free memory was 45.2MB in the beginning and 48.9MB in the end (delta: -3.7MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.93ms. Allocated memory is still 71.3MB. Free memory was 48.9MB in the beginning and 47.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.14ms. Allocated memory is still 71.3MB. Free memory was 47.2MB in the beginning and 44.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1339.16ms. Allocated memory is still 71.3MB. Free memory was 44.5MB in the beginning and 28.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2487.72ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 27.9MB in the beginning and 61.8MB in the end (delta: -33.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 115.26ms. Allocated memory is still 86.0MB. Free memory was 61.8MB in the beginning and 57.1MB in the end (delta: 4.8MB). 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: 95]: 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, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 68 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 11 QuantifiedInterpolants, 144 SizeOfPredicates, 6 NumberOfNonLiveVariables, 133 ConjunctsInSsa, 20 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-19 19:24:33,995 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