./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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/double_req_bl_0730b.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 05e2baf38cd0eae96e398823454df9c6d2eba699137545e6490e497cf90c6efe --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 12:29:26,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:29:26,385 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 12:29:26,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:29:26,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:29:26,432 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:29:26,433 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:29:26,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:29:26,434 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 12:29:26,436 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 12:29:26,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:29:26,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:29:26,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:29:26,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:29:26,438 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:29:26,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:29:26,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:29:26,440 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:29:26,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 12:29:26,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:29:26,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:29:26,442 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:29:26,442 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:29:26,442 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:29:26,442 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:29:26,443 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:29:26,443 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:29:26,443 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:29:26,443 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:29:26,443 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:29:26,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:29:26,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:29:26,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:29:26,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:29:26,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:29:26,444 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:29:26,444 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 12:29:26,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 12:29:26,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:29:26,445 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 12:29:26,445 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 12:29:26,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 12:29:26,446 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05e2baf38cd0eae96e398823454df9c6d2eba699137545e6490e497cf90c6efe [2024-11-08 12:29:26,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:29:26,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:29:26,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:29:26,676 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:29:26,676 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:29:26,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2024-11-08 12:29:27,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:29:28,113 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:29:28,114 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2024-11-08 12:29:28,121 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08e399c04/229feafdaa1444bbaed3d976a78ea59d/FLAG9a8ae0cd4 [2024-11-08 12:29:28,519 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08e399c04/229feafdaa1444bbaed3d976a78ea59d [2024-11-08 12:29:28,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:29:28,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:29:28,524 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:29:28,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:29:28,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:29:28,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2975efcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28, skipping insertion in model container [2024-11-08 12:29:28,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,557 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:29:28,757 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c[3225,3238] [2024-11-08 12:29:28,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:29:28,767 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:29:28,800 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c[3225,3238] [2024-11-08 12:29:28,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:29:28,837 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:29:28,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28 WrapperNode [2024-11-08 12:29:28,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:29:28,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:29:28,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:29:28,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:29:28,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,890 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 325 [2024-11-08 12:29:28,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:29:28,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:29:28,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:29:28,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:29:28,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,912 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,931 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 3, 2]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 2, 1]. [2024-11-08 12:29:28,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,939 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,944 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,947 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:29:28,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:29:28,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:29:28,959 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:29:28,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28" (1/1) ... [2024-11-08 12:29:28,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:29:28,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 12:29:29,007 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) [2024-11-08 12:29:29,014 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 [2024-11-08 12:29:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:29:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 12:29:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 12:29:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 12:29:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 12:29:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:29:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 12:29:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 12:29:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 12:29:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 12:29:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 12:29:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 12:29:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 12:29:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 12:29:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 12:29:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 12:29:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 12:29:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 12:29:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:29:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:29:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 12:29:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 12:29:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 12:29:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 12:29:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:29:29,166 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:29:29,168 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:29:29,544 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-11-08 12:29:29,544 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:29:29,557 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:29:29,557 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-08 12:29:29,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:29:29 BoogieIcfgContainer [2024-11-08 12:29:29,558 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:29:29,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:29:29,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:29:29,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:29:29,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:29:28" (1/3) ... [2024-11-08 12:29:29,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e949fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:29:29, skipping insertion in model container [2024-11-08 12:29:29,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:28" (2/3) ... [2024-11-08 12:29:29,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e949fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:29:29, skipping insertion in model container [2024-11-08 12:29:29,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:29:29" (3/3) ... [2024-11-08 12:29:29,565 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b.c [2024-11-08 12:29:29,580 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:29:29,580 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:29:29,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 12:29:29,636 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;@4bf4acfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:29:29,637 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:29:29,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 110 states have (on average 1.6) internal successors, (176), 111 states have internal predecessors, (176), 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) [2024-11-08 12:29:29,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 12:29:29,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:29,648 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:29,648 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:29,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:29,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1827649173, now seen corresponding path program 1 times [2024-11-08 12:29:29,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:29:29,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208982381] [2024-11-08 12:29:29,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:29,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:29:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:29:29,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:29:29,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:29:29,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208982381] [2024-11-08 12:29:29,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208982381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:29:29,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:29:29,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:29:29,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532208388] [2024-11-08 12:29:29,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:29:29,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 12:29:29,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:29:29,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 12:29:29,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:29:29,831 INFO L87 Difference]: Start difference. First operand has 112 states, 110 states have (on average 1.6) internal successors, (176), 111 states have internal predecessors, (176), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-08 12:29:29,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:29:29,858 INFO L93 Difference]: Finished difference Result 222 states and 350 transitions. [2024-11-08 12:29:29,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:29:29,861 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2024-11-08 12:29:29,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:29:29,891 INFO L225 Difference]: With dead ends: 222 [2024-11-08 12:29:29,895 INFO L226 Difference]: Without dead ends: 109 [2024-11-08 12:29:29,898 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 [2024-11-08 12:29:29,907 INFO L432 NwaCegarLoop]: 164 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, 164 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 [2024-11-08 12:29:29,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:29:29,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-08 12:29:29,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-08 12:29:30,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.4907407407407407) internal successors, (161), 108 states have internal predecessors, (161), 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) [2024-11-08 12:29:30,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 161 transitions. [2024-11-08 12:29:30,010 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 161 transitions. Word has length 9 [2024-11-08 12:29:30,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:29:30,011 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 161 transitions. [2024-11-08 12:29:30,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-08 12:29:30,012 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 161 transitions. [2024-11-08 12:29:30,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 12:29:30,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:30,014 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:30,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 12:29:30,015 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:30,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:30,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1560701640, now seen corresponding path program 1 times [2024-11-08 12:29:30,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:29:30,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814026699] [2024-11-08 12:29:30,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:30,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:29:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:29:30,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:29:30,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:29:30,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814026699] [2024-11-08 12:29:30,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814026699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:29:30,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:29:30,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 12:29:30,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394649690] [2024-11-08 12:29:30,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:29:30,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 12:29:30,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:29:30,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 12:29:30,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 12:29:30,147 INFO L87 Difference]: Start difference. First operand 109 states and 161 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:29:30,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:29:30,174 INFO L93 Difference]: Finished difference Result 119 states and 172 transitions. [2024-11-08 12:29:30,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:29:30,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-08 12:29:30,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:29:30,178 INFO L225 Difference]: With dead ends: 119 [2024-11-08 12:29:30,179 INFO L226 Difference]: Without dead ends: 110 [2024-11-08 12:29:30,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 12:29:30,181 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 0 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 12:29:30,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 314 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:29:30,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-08 12:29:30,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-08 12:29:30,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.4862385321100917) internal successors, (162), 109 states have internal predecessors, (162), 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) [2024-11-08 12:29:30,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 162 transitions. [2024-11-08 12:29:30,192 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 162 transitions. Word has length 10 [2024-11-08 12:29:30,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:29:30,192 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 162 transitions. [2024-11-08 12:29:30,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:29:30,193 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 162 transitions. [2024-11-08 12:29:30,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 12:29:30,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:30,193 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:30,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 12:29:30,193 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:30,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:30,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1919090808, now seen corresponding path program 1 times [2024-11-08 12:29:30,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:29:30,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013879152] [2024-11-08 12:29:30,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:30,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:29:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:29:30,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 12:29:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:29:30,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 12:29:30,269 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 12:29:30,271 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:29:30,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 12:29:30,275 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 12:29:30,290 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:29:30,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:29:30 BoogieIcfgContainer [2024-11-08 12:29:30,296 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:29:30,297 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:29:30,297 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:29:30,297 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:29:30,297 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:29:29" (3/4) ... [2024-11-08 12:29:30,299 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 12:29:30,301 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:29:30,301 INFO L158 Benchmark]: Toolchain (without parser) took 1779.02ms. Allocated memory was 138.4MB in the beginning and 230.7MB in the end (delta: 92.3MB). Free memory was 68.4MB in the beginning and 175.4MB in the end (delta: -107.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:29:30,301 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 101.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:29:30,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.36ms. Allocated memory was 138.4MB in the beginning and 230.7MB in the end (delta: 92.3MB). Free memory was 68.3MB in the beginning and 200.3MB in the end (delta: -132.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2024-11-08 12:29:30,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.82ms. Allocated memory is still 230.7MB. Free memory was 200.3MB in the beginning and 197.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:29:30,302 INFO L158 Benchmark]: Boogie Preprocessor took 65.32ms. Allocated memory is still 230.7MB. Free memory was 197.3MB in the beginning and 196.6MB in the end (delta: 710.7kB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-11-08 12:29:30,302 INFO L158 Benchmark]: RCFGBuilder took 598.82ms. Allocated memory is still 230.7MB. Free memory was 196.6MB in the beginning and 164.1MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-08 12:29:30,303 INFO L158 Benchmark]: TraceAbstraction took 736.74ms. Allocated memory is still 230.7MB. Free memory was 163.0MB in the beginning and 176.5MB in the end (delta: -13.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:29:30,303 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 230.7MB. Free memory was 176.5MB in the beginning and 175.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:29:30,305 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 101.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.36ms. Allocated memory was 138.4MB in the beginning and 230.7MB in the end (delta: 92.3MB). Free memory was 68.3MB in the beginning and 200.3MB in the end (delta: -132.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.82ms. Allocated memory is still 230.7MB. Free memory was 200.3MB in the beginning and 197.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.32ms. Allocated memory is still 230.7MB. Free memory was 197.3MB in the beginning and 196.6MB in the end (delta: 710.7kB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * RCFGBuilder took 598.82ms. Allocated memory is still 230.7MB. Free memory was 196.6MB in the beginning and 164.1MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 736.74ms. Allocated memory is still 230.7MB. Free memory was 163.0MB in the beginning and 176.5MB in the end (delta: -13.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 230.7MB. Free memory was 176.5MB in the beginning and 175.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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: 156]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 155, overapproximation of someUnaryDOUBLEoperation at line 151, overapproximation of someBinaryArithmeticDOUBLEoperation at line 35. Possible FailurePath: [L19] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L151] double x = -0.0; [L152] CALL, EXPR __ieee754_sqrt(x) [L22] double z; [L23] __int32_t sign = 0x80000000; [L24] __uint32_t r, t1, s1, ix1, q1; [L25] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6441402378] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (ix0) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (ix1) = ew_u.parts.lsw [L34] EXPR ix0 & 0x7ff00000 VAL [ix0=2146435072, ix1=6441402369, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6441402378] [L34] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L35] return x * x + x; VAL [ix0=2146435072, ix1=6441402369, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6441402378] [L152] RET, EXPR __ieee754_sqrt(x) [L152] double res = __ieee754_sqrt(x); [L155] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [one_sqrt=1, res=6441402379, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L155] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L155] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L156] reach_error() VAL [one_sqrt=1, res=6441402379, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 112 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, 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, 478 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 154 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 324 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2024-11-08 12:29:30,328 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/double_req_bl_0730b.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 05e2baf38cd0eae96e398823454df9c6d2eba699137545e6490e497cf90c6efe --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 12:29:32,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:29:32,316 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 12:29:32,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:29:32,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:29:32,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:29:32,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:29:32,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:29:32,358 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 12:29:32,359 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 12:29:32,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:29:32,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:29:32,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:29:32,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:29:32,361 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:29:32,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:29:32,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:29:32,363 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:29:32,365 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:29:32,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:29:32,365 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:29:32,366 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:29:32,366 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:29:32,366 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 12:29:32,366 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 12:29:32,367 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:29:32,367 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 12:29:32,367 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:29:32,367 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:29:32,367 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:29:32,368 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:29:32,368 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:29:32,368 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:29:32,368 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:29:32,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:29:32,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:29:32,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:29:32,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:29:32,370 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 12:29:32,370 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 12:29:32,370 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:29:32,374 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 12:29:32,374 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 12:29:32,374 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 12:29:32,374 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05e2baf38cd0eae96e398823454df9c6d2eba699137545e6490e497cf90c6efe [2024-11-08 12:29:32,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:29:32,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:29:32,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:29:32,695 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:29:32,696 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:29:32,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2024-11-08 12:29:34,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:29:34,325 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:29:34,325 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2024-11-08 12:29:34,335 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1d52528/02856c0c96354c5cbbab396215d791b9/FLAG035627173 [2024-11-08 12:29:34,695 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1d52528/02856c0c96354c5cbbab396215d791b9 [2024-11-08 12:29:34,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:29:34,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:29:34,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:29:34,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:29:34,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:29:34,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:29:34" (1/1) ... [2024-11-08 12:29:34,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e80f518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:34, skipping insertion in model container [2024-11-08 12:29:34,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:29:34" (1/1) ... [2024-11-08 12:29:34,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:29:34,951 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c[3225,3238] [2024-11-08 12:29:34,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:29:34,981 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:29:35,020 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c[3225,3238] [2024-11-08 12:29:35,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:29:35,040 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:29:35,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35 WrapperNode [2024-11-08 12:29:35,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:29:35,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:29:35,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:29:35,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:29:35,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35" (1/1) ... [2024-11-08 12:29:35,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35" (1/1) ... [2024-11-08 12:29:35,081 INFO L138 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 182 [2024-11-08 12:29:35,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:29:35,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:29:35,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:29:35,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:29:35,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35" (1/1) ... [2024-11-08 12:29:35,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35" (1/1) ... [2024-11-08 12:29:35,099 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35" (1/1) ... [2024-11-08 12:29:35,111 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 2, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 2, 1, 1]. [2024-11-08 12:29:35,111 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35" (1/1) ... [2024-11-08 12:29:35,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35" (1/1) ... [2024-11-08 12:29:35,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35" (1/1) ... [2024-11-08 12:29:35,129 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35" (1/1) ... [2024-11-08 12:29:35,132 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35" (1/1) ... [2024-11-08 12:29:35,136 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35" (1/1) ... [2024-11-08 12:29:35,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:29:35,144 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:29:35,144 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:29:35,145 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:29:35,145 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35" (1/1) ... [2024-11-08 12:29:35,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:29:35,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 12:29:35,175 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) [2024-11-08 12:29:35,181 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 [2024-11-08 12:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-08 12:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-08 12:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-08 12:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-08 12:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-08 12:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-08 12:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-08 12:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-08 12:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 12:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 12:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 12:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 12:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 12:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 12:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 12:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 12:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:29:35,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 12:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 12:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 12:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-08 12:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:29:35,318 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:29:35,320 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:29:39,855 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-08 12:29:39,855 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:29:39,869 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:29:39,869 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-08 12:29:39,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:29:39 BoogieIcfgContainer [2024-11-08 12:29:39,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:29:39,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:29:39,871 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:29:39,874 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:29:39,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:29:34" (1/3) ... [2024-11-08 12:29:39,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bd52fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:29:39, skipping insertion in model container [2024-11-08 12:29:39,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:35" (2/3) ... [2024-11-08 12:29:39,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bd52fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:29:39, skipping insertion in model container [2024-11-08 12:29:39,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:29:39" (3/3) ... [2024-11-08 12:29:39,877 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b.c [2024-11-08 12:29:39,891 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:29:39,891 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:29:39,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 12:29:39,946 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;@32501acb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:29:39,946 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:29:39,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 52 states have internal predecessors, (84), 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) [2024-11-08 12:29:39,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 12:29:39,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:39,963 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:39,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:39,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:39,968 INFO L85 PathProgramCache]: Analyzing trace with hash 361085180, now seen corresponding path program 1 times [2024-11-08 12:29:39,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:29:39,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940046350] [2024-11-08 12:29:39,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:39,981 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 [2024-11-08 12:29:39,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:29:39,984 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) [2024-11-08 12:29:39,985 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 [2024-11-08 12:29:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:29:40,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 12:29:40,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:29:40,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:29:40,312 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:29:40,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:29:40,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940046350] [2024-11-08 12:29:40,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940046350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:29:40,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:29:40,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:29:40,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283452626] [2024-11-08 12:29:40,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:29:40,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 12:29:40,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:29:40,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 12:29:40,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:29:40,350 INFO L87 Difference]: Start difference. First operand has 53 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 52 states have internal predecessors, (84), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-08 12:29:40,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:29:40,369 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2024-11-08 12:29:40,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:29:40,372 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2024-11-08 12:29:40,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:29:40,379 INFO L225 Difference]: With dead ends: 104 [2024-11-08 12:29:40,380 INFO L226 Difference]: Without dead ends: 50 [2024-11-08 12:29:40,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:29:40,388 INFO L432 NwaCegarLoop]: 73 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, 73 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 [2024-11-08 12:29:40,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:29:40,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-08 12:29:40,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-08 12:29:40,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 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) [2024-11-08 12:29:40,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2024-11-08 12:29:40,438 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 8 [2024-11-08 12:29:40,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:29:40,438 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2024-11-08 12:29:40,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-08 12:29:40,439 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2024-11-08 12:29:40,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 12:29:40,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:40,439 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:40,451 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 [2024-11-08 12:29:40,644 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 [2024-11-08 12:29:40,645 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:40,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:40,646 INFO L85 PathProgramCache]: Analyzing trace with hash 331839487, now seen corresponding path program 1 times [2024-11-08 12:29:40,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:29:40,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429586937] [2024-11-08 12:29:40,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:40,647 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 [2024-11-08 12:29:40,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:29:40,650 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) [2024-11-08 12:29:40,651 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 [2024-11-08 12:29:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:29:40,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 12:29:40,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:29:41,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:29:41,265 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:29:41,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:29:41,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429586937] [2024-11-08 12:29:41,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429586937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:29:41,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:29:41,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 12:29:41,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51319863] [2024-11-08 12:29:41,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:29:41,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 12:29:41,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:29:41,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 12:29:41,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 12:29:41,269 INFO L87 Difference]: Start difference. First operand 50 states and 70 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-08 12:29:42,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:29:42,457 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2024-11-08 12:29:42,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:29:42,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2024-11-08 12:29:42,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:29:42,530 INFO L225 Difference]: With dead ends: 59 [2024-11-08 12:29:42,530 INFO L226 Difference]: Without dead ends: 17 [2024-11-08 12:29:42,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 12:29:42,535 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 12:29:42,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 30 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 12:29:42,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-08 12:29:42,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-08 12:29:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:29:42,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2024-11-08 12:29:42,539 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2024-11-08 12:29:42,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:29:42,539 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-11-08 12:29:42,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-08 12:29:42,539 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2024-11-08 12:29:42,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 12:29:42,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:42,540 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:42,551 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 [2024-11-08 12:29:42,740 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 [2024-11-08 12:29:42,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:42,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:42,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1929218748, now seen corresponding path program 1 times [2024-11-08 12:29:42,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:29:42,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61763471] [2024-11-08 12:29:42,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:42,742 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 [2024-11-08 12:29:42,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:29:42,744 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) [2024-11-08 12:29:42,745 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 [2024-11-08 12:29:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:29:42,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 12:29:42,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:29:43,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:29:43,182 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:29:43,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:29:43,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61763471] [2024-11-08 12:29:43,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61763471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:29:43,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:29:43,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 12:29:43,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234853333] [2024-11-08 12:29:43,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:29:43,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 12:29:43,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:29:43,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 12:29:43,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 12:29:43,184 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2024-11-08 12:29:44,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:29:44,377 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2024-11-08 12:29:44,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 12:29:44,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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 [2024-11-08 12:29:44,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:29:44,378 INFO L225 Difference]: With dead ends: 22 [2024-11-08 12:29:44,378 INFO L226 Difference]: Without dead ends: 19 [2024-11-08 12:29:44,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 12:29:44,379 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 12:29:44,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 42 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 12:29:44,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-08 12:29:44,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-08 12:29:44,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 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) [2024-11-08 12:29:44,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2024-11-08 12:29:44,382 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2024-11-08 12:29:44,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:29:44,383 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2024-11-08 12:29:44,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2024-11-08 12:29:44,383 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-11-08 12:29:44,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 12:29:44,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:44,384 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:44,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-08 12:29:44,584 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 [2024-11-08 12:29:44,585 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:44,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:44,587 INFO L85 PathProgramCache]: Analyzing trace with hash 239121058, now seen corresponding path program 1 times [2024-11-08 12:29:44,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:29:44,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97770279] [2024-11-08 12:29:44,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:44,588 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 [2024-11-08 12:29:44,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:29:44,590 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 12:29:44,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-08 12:29:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:29:45,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 12:29:45,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:29:46,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:29:46,212 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:29:46,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:29:46,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97770279] [2024-11-08 12:29:46,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97770279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:29:46,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:29:46,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 12:29:46,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097755109] [2024-11-08 12:29:46,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:29:46,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 12:29:46,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:29:46,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 12:29:46,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 12:29:46,218 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:29:46,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:29:46,512 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2024-11-08 12:29:46,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:29:46,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-08 12:29:46,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:29:46,514 INFO L225 Difference]: With dead ends: 26 [2024-11-08 12:29:46,514 INFO L226 Difference]: Without dead ends: 16 [2024-11-08 12:29:46,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 12:29:46,516 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 12:29:46,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 27 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 12:29:46,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-08 12:29:46,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-08 12:29:46,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 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) [2024-11-08 12:29:46,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2024-11-08 12:29:46,519 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 12 [2024-11-08 12:29:46,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:29:46,520 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2024-11-08 12:29:46,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:29:46,520 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2024-11-08 12:29:46,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 12:29:46,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:46,520 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:46,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-08 12:29:46,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 12:29:46,721 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:46,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:46,722 INFO L85 PathProgramCache]: Analyzing trace with hash 264903321, now seen corresponding path program 1 times [2024-11-08 12:29:46,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:29:46,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065213696] [2024-11-08 12:29:46,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:46,723 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 [2024-11-08 12:29:46,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:29:46,725 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2024-11-08 12:29:46,726 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 (6)] Waiting until timeout for monitored process [2024-11-08 12:29:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:29:46,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 12:29:46,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:29:48,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:29:48,014 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:29:48,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:29:48,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065213696] [2024-11-08 12:29:48,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065213696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:29:48,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:29:48,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 12:29:48,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481371294] [2024-11-08 12:29:48,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:29:48,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 12:29:48,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:29:48,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 12:29:48,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 12:29:48,015 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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) [2024-11-08 12:29:48,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:29:48,989 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2024-11-08 12:29:48,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 12:29:48,990 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 [2024-11-08 12:29:48,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:29:48,990 INFO L225 Difference]: With dead ends: 16 [2024-11-08 12:29:48,990 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 12:29:48,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-08 12:29:48,991 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 12:29:48,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 39 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 12:29:48,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 12:29:48,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 12:29:48,992 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) [2024-11-08 12:29:48,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 12:29:48,992 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2024-11-08 12:29:48,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:29:48,992 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 12:29:48,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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) [2024-11-08 12:29:48,992 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 12:29:48,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 12:29:48,996 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:29:49,002 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 (6)] Ended with exit code 0 [2024-11-08 12:29:49,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 [2024-11-08 12:29:49,204 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 12:29:49,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 12:29:49,365 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:29:49,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:29:49 BoogieIcfgContainer [2024-11-08 12:29:49,393 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:29:49,394 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:29:49,394 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:29:49,394 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:29:49,395 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:29:39" (3/4) ... [2024-11-08 12:29:49,397 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 12:29:49,408 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-08 12:29:49,408 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-08 12:29:49,409 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 12:29:49,409 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 12:29:49,505 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 12:29:49,505 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 12:29:49,506 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:29:49,506 INFO L158 Benchmark]: Toolchain (without parser) took 14808.06ms. Allocated memory is still 75.5MB. Free memory was 47.2MB in the beginning and 46.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:29:49,506 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 52.4MB. Free memory is still 35.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:29:49,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.62ms. Allocated memory is still 75.5MB. Free memory was 47.0MB in the beginning and 50.9MB in the end (delta: -3.9MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-11-08 12:29:49,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.72ms. Allocated memory is still 75.5MB. Free memory was 50.9MB in the beginning and 49.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:29:49,507 INFO L158 Benchmark]: Boogie Preprocessor took 58.72ms. Allocated memory is still 75.5MB. Free memory was 49.0MB in the beginning and 45.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 12:29:49,507 INFO L158 Benchmark]: RCFGBuilder took 4725.42ms. Allocated memory is still 75.5MB. Free memory was 45.4MB in the beginning and 46.0MB in the end (delta: -559.8kB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-11-08 12:29:49,507 INFO L158 Benchmark]: TraceAbstraction took 9521.98ms. Allocated memory is still 75.5MB. Free memory was 45.5MB in the beginning and 52.3MB in the end (delta: -6.8MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2024-11-08 12:29:49,508 INFO L158 Benchmark]: Witness Printer took 111.79ms. Allocated memory is still 75.5MB. Free memory was 51.8MB in the beginning and 46.0MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 12:29:49,509 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 52.4MB. Free memory is still 35.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.62ms. Allocated memory is still 75.5MB. Free memory was 47.0MB in the beginning and 50.9MB in the end (delta: -3.9MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.72ms. Allocated memory is still 75.5MB. Free memory was 50.9MB in the beginning and 49.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.72ms. Allocated memory is still 75.5MB. Free memory was 49.0MB in the beginning and 45.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 4725.42ms. Allocated memory is still 75.5MB. Free memory was 45.4MB in the beginning and 46.0MB in the end (delta: -559.8kB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 9521.98ms. Allocated memory is still 75.5MB. Free memory was 45.5MB in the beginning and 52.3MB in the end (delta: -6.8MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 111.79ms. Allocated memory is still 75.5MB. Free memory was 51.8MB in the beginning and 46.0MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 156]: 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, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 211 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 115 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 50 ConstructedInterpolants, 8 QuantifiedInterpolants, 266 SizeOfPredicates, 10 NumberOfNonLiveVariables, 217 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-08 12:29:49,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE