./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0730a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0730a.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 08b98e45599512b8d6c489b1dd455db4184e1609dc88e012fc4f2e92ac326cf0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 05:17:04,372 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 05:17:04,444 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 05:17:04,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 05:17:04,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 05:17:04,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 05:17:04,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 05:17:04,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 05:17:04,478 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 05:17:04,478 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 05:17:04,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 05:17:04,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 05:17:04,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 05:17:04,479 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 05:17:04,479 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 05:17:04,480 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 05:17:04,480 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 05:17:04,484 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 05:17:04,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 05:17:04,484 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 05:17:04,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 05:17:04,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 05:17:04,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 05:17:04,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 05:17:04,491 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 05:17:04,491 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 05:17:04,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 05:17:04,491 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 05:17:04,491 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 05:17:04,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 05:17:04,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 05:17:04,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 05:17:04,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 05:17:04,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 05:17:04,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 05:17:04,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 05:17:04,493 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 05:17:04,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 05:17:04,493 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 05:17:04,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 05:17:04,493 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 05:17:04,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 05:17:04,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08b98e45599512b8d6c489b1dd455db4184e1609dc88e012fc4f2e92ac326cf0 [2024-11-16 05:17:04,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 05:17:04,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 05:17:04,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 05:17:04,724 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 05:17:04,725 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 05:17:04,725 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0730a.c [2024-11-16 05:17:05,995 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 05:17:06,147 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 05:17:06,148 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730a.c [2024-11-16 05:17:06,158 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/271c7efcd/f49e0078e83c427d9c59386fa93f054c/FLAGc9a050172 [2024-11-16 05:17:06,170 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/271c7efcd/f49e0078e83c427d9c59386fa93f054c [2024-11-16 05:17:06,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 05:17:06,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 05:17:06,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 05:17:06,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 05:17:06,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 05:17:06,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5748403e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06, skipping insertion in model container [2024-11-16 05:17:06,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,196 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 05:17:06,382 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730a.c[2102,2115] [2024-11-16 05:17:06,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 05:17:06,392 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 05:17:06,419 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730a.c[2102,2115] [2024-11-16 05:17:06,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 05:17:06,436 INFO L204 MainTranslator]: Completed translation [2024-11-16 05:17:06,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06 WrapperNode [2024-11-16 05:17:06,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 05:17:06,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 05:17:06,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 05:17:06,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 05:17:06,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,493 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 141 [2024-11-16 05:17:06,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 05:17:06,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 05:17:06,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 05:17:06,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 05:17:06,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,539 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,565 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-11-16 05:17:06,566 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,571 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 05:17:06,582 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 05:17:06,582 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 05:17:06,582 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 05:17:06,583 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06" (1/1) ... [2024-11-16 05:17:06,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 05:17:06,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 05:17:06,614 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) [2024-11-16 05:17:06,623 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 [2024-11-16 05:17:06,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 05:17:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 05:17:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 05:17:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 05:17:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 05:17:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 05:17:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-16 05:17:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-16 05:17:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-16 05:17:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-16 05:17:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 05:17:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 05:17:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 05:17:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 05:17:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-16 05:17:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-16 05:17:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-16 05:17:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-16 05:17:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 05:17:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 05:17:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 05:17:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 05:17:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 05:17:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 05:17:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 05:17:06,762 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 05:17:06,764 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 05:17:06,980 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-16 05:17:06,981 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 05:17:07,002 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 05:17:07,006 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 05:17:07,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:17:07 BoogieIcfgContainer [2024-11-16 05:17:07,007 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 05:17:07,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 05:17:07,010 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 05:17:07,013 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 05:17:07,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 05:17:06" (1/3) ... [2024-11-16 05:17:07,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69071e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:17:07, skipping insertion in model container [2024-11-16 05:17:07,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:06" (2/3) ... [2024-11-16 05:17:07,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69071e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:17:07, skipping insertion in model container [2024-11-16 05:17:07,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:17:07" (3/3) ... [2024-11-16 05:17:07,020 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730a.c [2024-11-16 05:17:07,048 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 05:17:07,049 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 05:17:07,092 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 05:17:07,097 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;@56704e1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 05:17:07,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 05:17:07,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 43 states have (on average 1.5813953488372092) internal successors, (68), 44 states have internal predecessors, (68), 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) [2024-11-16 05:17:07,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-16 05:17:07,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:17:07,105 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:17:07,105 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:17:07,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:17:07,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1394361803, now seen corresponding path program 1 times [2024-11-16 05:17:07,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 05:17:07,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221758284] [2024-11-16 05:17:07,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:17:07,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 05:17:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:17:07,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:17:07,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 05:17:07,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221758284] [2024-11-16 05:17:07,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221758284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:17:07,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:17:07,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 05:17:07,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384523951] [2024-11-16 05:17:07,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:17:07,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 05:17:07,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 05:17:07,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 05:17:07,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 05:17:07,271 INFO L87 Difference]: Start difference. First operand has 45 states, 43 states have (on average 1.5813953488372092) internal successors, (68), 44 states have internal predecessors, (68), 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) [2024-11-16 05:17:07,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:17:07,290 INFO L93 Difference]: Finished difference Result 87 states and 133 transitions. [2024-11-16 05:17:07,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 05:17:07,295 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 [2024-11-16 05:17:07,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:17:07,302 INFO L225 Difference]: With dead ends: 87 [2024-11-16 05:17:07,303 INFO L226 Difference]: Without dead ends: 41 [2024-11-16 05:17:07,305 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 [2024-11-16 05:17:07,307 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 05:17:07,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 05:17:07,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-16 05:17:07,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-16 05:17:07,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.35) internal successors, (54), 40 states have internal predecessors, (54), 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) [2024-11-16 05:17:07,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2024-11-16 05:17:07,332 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 11 [2024-11-16 05:17:07,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:17:07,332 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2024-11-16 05:17:07,332 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) [2024-11-16 05:17:07,332 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2024-11-16 05:17:07,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-16 05:17:07,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:17:07,333 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:17:07,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 05:17:07,334 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:17:07,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:17:07,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1212491600, now seen corresponding path program 1 times [2024-11-16 05:17:07,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 05:17:07,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790741014] [2024-11-16 05:17:07,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:17:07,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 05:17:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 05:17:07,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 05:17:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 05:17:07,450 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 05:17:07,451 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 05:17:07,453 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 05:17:07,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 05:17:07,456 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-16 05:17:07,474 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 05:17:07,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 05:17:07 BoogieIcfgContainer [2024-11-16 05:17:07,477 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 05:17:07,478 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 05:17:07,478 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 05:17:07,478 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 05:17:07,478 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:17:07" (3/4) ... [2024-11-16 05:17:07,481 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-16 05:17:07,482 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 05:17:07,483 INFO L158 Benchmark]: Toolchain (without parser) took 1309.40ms. Allocated memory is still 180.4MB. Free memory was 114.1MB in the beginning and 101.2MB in the end (delta: 13.0MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-11-16 05:17:07,483 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory was 75.8MB in the beginning and 75.7MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 05:17:07,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.27ms. Allocated memory is still 180.4MB. Free memory was 113.9MB in the beginning and 100.3MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 05:17:07,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.24ms. Allocated memory is still 180.4MB. Free memory was 100.3MB in the beginning and 154.1MB in the end (delta: -53.8MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2024-11-16 05:17:07,486 INFO L158 Benchmark]: Boogie Preprocessor took 85.79ms. Allocated memory is still 180.4MB. Free memory was 154.1MB in the beginning and 151.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 05:17:07,487 INFO L158 Benchmark]: IcfgBuilder took 425.01ms. Allocated memory is still 180.4MB. Free memory was 151.5MB in the beginning and 131.9MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-16 05:17:07,487 INFO L158 Benchmark]: TraceAbstraction took 468.99ms. Allocated memory is still 180.4MB. Free memory was 131.2MB in the beginning and 101.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-16 05:17:07,487 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 180.4MB. Free memory was 101.9MB in the beginning and 101.2MB in the end (delta: 689.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 05:17:07,489 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory was 75.8MB in the beginning and 75.7MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.27ms. Allocated memory is still 180.4MB. Free memory was 113.9MB in the beginning and 100.3MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.24ms. Allocated memory is still 180.4MB. Free memory was 100.3MB in the beginning and 154.1MB in the end (delta: -53.8MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.79ms. Allocated memory is still 180.4MB. Free memory was 154.1MB in the beginning and 151.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 425.01ms. Allocated memory is still 180.4MB. Free memory was 151.5MB in the beginning and 131.9MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 468.99ms. Allocated memory is still 180.4MB. Free memory was 131.2MB in the beginning and 101.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 180.4MB. Free memory was 101.9MB in the beginning and 101.2MB in the end (delta: 689.7kB). 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: 109]: 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 someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L103] float x = 1.0f / 0.0f; [L105] CALL, EXPR __ieee754_sqrtf(x) [L17] float z; [L18] __uint32_t r, hx; [L19] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578702] [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (x) [L24] EXPR gf_u.word [L24] (ix) = gf_u.word [L25] COND FALSE !(0) VAL [ix=-8388608, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578702] [L26] hx = ix & 0x7fffffff VAL [hx=2139095040, ix=-8388608, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578702] [L28] COND TRUE !((hx) < 0x7f800000L) [L29] return x * x + x; VAL [ix=-8388608, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578702] [L105] RET, EXPR __ieee754_sqrtf(x) [L105] float res = __ieee754_sqrtf(x); [L108] CALL, EXPR isinf_float(res) [L85] __int32_t ix; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578701] [L87] ieee_float_shape_type gf_u; [L88] gf_u.value = (x) [L89] EXPR gf_u.word [L89] (ix) = gf_u.word [L90] COND FALSE !(0) VAL [ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578701] [L91] ix &= 0x7fffffff [L92] return ((ix) == 0x7f800000L); VAL [\result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578701] [L108] RET, EXPR isinf_float(res) [L108] COND TRUE !isinf_float(res) [L109] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 55 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 55 mSDtfsCounter, 2 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=45occurred 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, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 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 [2024-11-16 05:17:07,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0730a.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 08b98e45599512b8d6c489b1dd455db4184e1609dc88e012fc4f2e92ac326cf0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 05:17:09,691 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 05:17:09,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-16 05:17:09,747 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 05:17:09,748 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 05:17:09,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 05:17:09,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 05:17:09,775 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 05:17:09,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 05:17:09,776 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 05:17:09,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 05:17:09,777 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 05:17:09,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 05:17:09,778 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 05:17:09,778 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 05:17:09,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 05:17:09,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 05:17:09,779 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 05:17:09,780 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 05:17:09,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 05:17:09,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 05:17:09,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 05:17:09,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 05:17:09,792 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-16 05:17:09,792 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-16 05:17:09,792 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 05:17:09,792 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-16 05:17:09,792 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 05:17:09,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 05:17:09,793 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 05:17:09,793 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 05:17:09,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 05:17:09,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 05:17:09,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 05:17:09,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 05:17:09,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 05:17:09,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 05:17:09,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 05:17:09,794 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-16 05:17:09,794 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-16 05:17:09,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 05:17:09,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 05:17:09,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 05:17:09,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 05:17:09,796 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08b98e45599512b8d6c489b1dd455db4184e1609dc88e012fc4f2e92ac326cf0 [2024-11-16 05:17:10,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 05:17:10,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 05:17:10,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 05:17:10,130 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 05:17:10,130 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 05:17:10,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0730a.c [2024-11-16 05:17:11,478 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 05:17:11,660 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 05:17:11,661 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730a.c [2024-11-16 05:17:11,675 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e809b1d/4160814a899b4e05957d5bd0bb71c430/FLAG666ed4a77 [2024-11-16 05:17:11,697 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e809b1d/4160814a899b4e05957d5bd0bb71c430 [2024-11-16 05:17:11,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 05:17:11,701 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 05:17:11,703 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 05:17:11,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 05:17:11,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 05:17:11,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:11,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9b0c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11, skipping insertion in model container [2024-11-16 05:17:11,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:11,746 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 05:17:11,923 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730a.c[2102,2115] [2024-11-16 05:17:11,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 05:17:11,937 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 05:17:11,964 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730a.c[2102,2115] [2024-11-16 05:17:11,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 05:17:11,983 INFO L204 MainTranslator]: Completed translation [2024-11-16 05:17:11,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11 WrapperNode [2024-11-16 05:17:11,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 05:17:11,984 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 05:17:11,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 05:17:11,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 05:17:11,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:11,999 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:12,024 INFO L138 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 124 [2024-11-16 05:17:12,024 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 05:17:12,025 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 05:17:12,025 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 05:17:12,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 05:17:12,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:12,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:12,045 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:12,062 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-11-16 05:17:12,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:12,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:12,077 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:12,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:12,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:12,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:12,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 05:17:12,105 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 05:17:12,105 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 05:17:12,106 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 05:17:12,107 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11" (1/1) ... [2024-11-16 05:17:12,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 05:17:12,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 05:17:12,144 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) [2024-11-16 05:17:12,157 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 [2024-11-16 05:17:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 05:17:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-16 05:17:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-16 05:17:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-16 05:17:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-16 05:17:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 05:17:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-16 05:17:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-16 05:17:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-16 05:17:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-16 05:17:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-16 05:17:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-16 05:17:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-16 05:17:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-16 05:17:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 05:17:12,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 05:17:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-16 05:17:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-16 05:17:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-16 05:17:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-16 05:17:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-16 05:17:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-16 05:17:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-16 05:17:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-16 05:17:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 05:17:12,296 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 05:17:12,300 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 05:17:13,808 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-16 05:17:13,809 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 05:17:13,830 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 05:17:13,835 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 05:17:13,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:17:13 BoogieIcfgContainer [2024-11-16 05:17:13,836 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 05:17:13,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 05:17:13,837 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 05:17:13,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 05:17:13,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 05:17:11" (1/3) ... [2024-11-16 05:17:13,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae86eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:17:13, skipping insertion in model container [2024-11-16 05:17:13,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:17:11" (2/3) ... [2024-11-16 05:17:13,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae86eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:17:13, skipping insertion in model container [2024-11-16 05:17:13,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:17:13" (3/3) ... [2024-11-16 05:17:13,853 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730a.c [2024-11-16 05:17:13,883 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 05:17:13,883 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 05:17:13,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 05:17:13,977 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;@59597fb1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 05:17:13,982 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 05:17:13,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 37 states have internal predecessors, (57), 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) [2024-11-16 05:17:13,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-16 05:17:13,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:17:13,997 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:17:13,997 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:17:14,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:17:14,003 INFO L85 PathProgramCache]: Analyzing trace with hash -567638338, now seen corresponding path program 1 times [2024-11-16 05:17:14,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 05:17:14,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847569332] [2024-11-16 05:17:14,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:17:14,016 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 [2024-11-16 05:17:14,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 05:17:14,020 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) [2024-11-16 05:17:14,021 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 [2024-11-16 05:17:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:17:14,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-16 05:17:14,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 05:17:14,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:17:14,162 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 05:17:14,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 05:17:14,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847569332] [2024-11-16 05:17:14,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847569332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:17:14,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:17:14,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 05:17:14,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505462793] [2024-11-16 05:17:14,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:17:14,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 05:17:14,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 05:17:14,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 05:17:14,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 05:17:14,186 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 37 states have internal predecessors, (57), 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) [2024-11-16 05:17:14,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:17:14,196 INFO L93 Difference]: Finished difference Result 73 states and 111 transitions. [2024-11-16 05:17:14,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 05:17:14,197 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 [2024-11-16 05:17:14,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:17:14,202 INFO L225 Difference]: With dead ends: 73 [2024-11-16 05:17:14,202 INFO L226 Difference]: Without dead ends: 34 [2024-11-16 05:17:14,204 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 [2024-11-16 05:17:14,206 INFO L432 NwaCegarLoop]: 47 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, 47 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 [2024-11-16 05:17:14,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 05:17:14,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-16 05:17:14,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-16 05:17:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 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) [2024-11-16 05:17:14,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2024-11-16 05:17:14,226 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 11 [2024-11-16 05:17:14,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:17:14,226 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2024-11-16 05:17:14,227 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) [2024-11-16 05:17:14,227 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2024-11-16 05:17:14,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-16 05:17:14,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:17:14,227 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:17:14,234 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 [2024-11-16 05:17:14,428 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 [2024-11-16 05:17:14,428 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:17:14,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:17:14,429 INFO L85 PathProgramCache]: Analyzing trace with hash 39301168, now seen corresponding path program 1 times [2024-11-16 05:17:14,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 05:17:14,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463708741] [2024-11-16 05:17:14,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:17:14,430 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 [2024-11-16 05:17:14,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 05:17:14,432 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) [2024-11-16 05:17:14,433 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 [2024-11-16 05:17:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:17:14,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 05:17:14,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 05:17:14,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:17:14,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 05:17:14,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 05:17:14,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463708741] [2024-11-16 05:17:14,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463708741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:17:14,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:17:14,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 05:17:14,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540874213] [2024-11-16 05:17:14,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:17:14,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 05:17:14,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 05:17:14,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 05:17:14,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 05:17:14,860 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:17:15,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:17:15,411 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2024-11-16 05:17:15,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 05:17:15,411 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-16 05:17:15,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:17:15,412 INFO L225 Difference]: With dead ends: 43 [2024-11-16 05:17:15,413 INFO L226 Difference]: Without dead ends: 35 [2024-11-16 05:17:15,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-16 05:17:15,414 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 47 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 05:17:15,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 202 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 05:17:15,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-16 05:17:15,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2024-11-16 05:17:15,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:17:15,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2024-11-16 05:17:15,418 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 13 [2024-11-16 05:17:15,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:17:15,418 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2024-11-16 05:17:15,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:17:15,419 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-16 05:17:15,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-16 05:17:15,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:17:15,419 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:17:15,425 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 [2024-11-16 05:17:15,620 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 [2024-11-16 05:17:15,620 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:17:15,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:17:15,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1157132172, now seen corresponding path program 1 times [2024-11-16 05:17:15,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 05:17:15,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416363983] [2024-11-16 05:17:15,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:17:15,622 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 [2024-11-16 05:17:15,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 05:17:15,624 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) [2024-11-16 05:17:15,625 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 [2024-11-16 05:17:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:17:15,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 05:17:15,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 05:17:15,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-16 05:17:15,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-16 05:17:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:17:16,038 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 05:17:16,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 05:17:16,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416363983] [2024-11-16 05:17:16,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416363983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:17:16,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:17:16,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 05:17:16,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380816914] [2024-11-16 05:17:16,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:17:16,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 05:17:16,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 05:17:16,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 05:17:16,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 05:17:16,040 INFO L87 Difference]: Start difference. First operand 34 states and 42 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) [2024-11-16 05:17:16,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:17:16,135 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2024-11-16 05:17:16,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 05:17:16,135 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 [2024-11-16 05:17:16,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:17:16,135 INFO L225 Difference]: With dead ends: 34 [2024-11-16 05:17:16,135 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 05:17:16,136 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 [2024-11-16 05:17:16,137 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 05:17:16,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 05:17:16,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 05:17:16,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 05:17:16,139 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) [2024-11-16 05:17:16,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 05:17:16,139 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2024-11-16 05:17:16,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:17:16,139 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 05:17:16,139 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) [2024-11-16 05:17:16,139 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 05:17:16,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 05:17:16,142 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 05:17:16,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-16 05:17:16,346 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 [2024-11-16 05:17:16,349 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-16 05:17:16,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 05:17:16,498 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 05:17:16,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 05:17:16 BoogieIcfgContainer [2024-11-16 05:17:16,508 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 05:17:16,508 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 05:17:16,508 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 05:17:16,509 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 05:17:16,509 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:17:13" (3/4) ... [2024-11-16 05:17:16,511 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 05:17:16,517 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-11-16 05:17:16,517 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-16 05:17:16,517 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 05:17:16,517 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 05:17:16,583 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 05:17:16,584 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 05:17:16,584 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 05:17:16,585 INFO L158 Benchmark]: Toolchain (without parser) took 4883.21ms. Allocated memory is still 115.3MB. Free memory was 75.1MB in the beginning and 86.0MB in the end (delta: -10.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 05:17:16,585 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 67.1MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 05:17:16,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.80ms. Allocated memory is still 115.3MB. Free memory was 75.1MB in the beginning and 60.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-16 05:17:16,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.75ms. Allocated memory is still 115.3MB. Free memory was 60.5MB in the beginning and 58.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 05:17:16,585 INFO L158 Benchmark]: Boogie Preprocessor took 78.48ms. Allocated memory is still 115.3MB. Free memory was 58.8MB in the beginning and 95.4MB in the end (delta: -36.6MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-11-16 05:17:16,586 INFO L158 Benchmark]: IcfgBuilder took 1730.98ms. Allocated memory is still 115.3MB. Free memory was 95.4MB in the beginning and 77.5MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 05:17:16,586 INFO L158 Benchmark]: TraceAbstraction took 2670.90ms. Allocated memory is still 115.3MB. Free memory was 77.3MB in the beginning and 91.9MB in the end (delta: -14.7MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2024-11-16 05:17:16,586 INFO L158 Benchmark]: Witness Printer took 75.74ms. Allocated memory is still 115.3MB. Free memory was 91.9MB in the beginning and 86.0MB in the end (delta: 5.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 05:17:16,587 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 67.1MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.80ms. Allocated memory is still 115.3MB. Free memory was 75.1MB in the beginning and 60.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.75ms. Allocated memory is still 115.3MB. Free memory was 60.5MB in the beginning and 58.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 78.48ms. Allocated memory is still 115.3MB. Free memory was 58.8MB in the beginning and 95.4MB in the end (delta: -36.6MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * IcfgBuilder took 1730.98ms. Allocated memory is still 115.3MB. Free memory was 95.4MB in the beginning and 77.5MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2670.90ms. Allocated memory is still 115.3MB. Free memory was 77.3MB in the beginning and 91.9MB in the end (delta: -14.7MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * Witness Printer took 75.74ms. Allocated memory is still 115.3MB. Free memory was 91.9MB in the beginning and 86.0MB in the end (delta: 5.9MB). 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: 109]: 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, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 256 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 172 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 84 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 4 QuantifiedInterpolants, 247 SizeOfPredicates, 8 NumberOfNonLiveVariables, 143 ConjunctsInSsa, 26 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: 86]: Location Invariant Derived location invariant: null - InvariantResult [Line: 75]: Location Invariant Derived location invariant: null - InvariantResult [Line: 21]: Location Invariant Derived location invariant: null - InvariantResult [Line: 52]: Location Invariant Derived location invariant: null - InvariantResult [Line: 38]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 05:17:16,618 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