./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0730c.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/float_req_bl_0730c.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 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 12:38:52,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:38:52,759 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 12:38:52,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:38:52,766 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:38:52,802 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:38:52,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:38:52,803 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:38:52,803 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 12:38:52,803 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 12:38:52,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:38:52,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:38:52,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:38:52,808 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:38:52,808 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:38:52,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:38:52,809 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:38:52,809 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:38:52,809 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 12:38:52,810 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:38:52,810 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:38:52,811 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:38:52,811 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:38:52,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:38:52,812 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:38:52,815 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:38:52,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:38:52,816 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:38:52,816 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:38:52,816 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:38:52,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:38:52,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:38:52,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:38:52,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:38:52,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:38:52,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:38:52,818 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 12:38:52,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 12:38:52,818 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:38:52,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 12:38:52,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 12:38:52,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 12:38:52,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a [2024-11-08 12:38:53,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:38:53,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:38:53,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:38:53,083 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:38:53,083 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:38:53,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2024-11-08 12:38:54,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:38:54,887 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:38:54,887 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2024-11-08 12:38:54,896 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a919725c/e59dadb287dd475d8e7b97201a037748/FLAGd77898ece [2024-11-08 12:38:54,909 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a919725c/e59dadb287dd475d8e7b97201a037748 [2024-11-08 12:38:54,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:38:54,913 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:38:54,915 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:38:54,915 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:38:54,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:38:54,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:38:54" (1/1) ... [2024-11-08 12:38:54,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c4be7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:54, skipping insertion in model container [2024-11-08 12:38:54,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:38:54" (1/1) ... [2024-11-08 12:38:54,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:38:55,173 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2024-11-08 12:38:55,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:38:55,190 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:38:55,214 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2024-11-08 12:38:55,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:38:55,235 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:38:55,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55 WrapperNode [2024-11-08 12:38:55,236 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:38:55,238 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:38:55,238 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:38:55,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:38:55,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55" (1/1) ... [2024-11-08 12:38:55,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55" (1/1) ... [2024-11-08 12:38:55,283 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 150 [2024-11-08 12:38:55,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:38:55,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:38:55,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:38:55,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:38:55,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55" (1/1) ... [2024-11-08 12:38:55,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55" (1/1) ... [2024-11-08 12:38:55,297 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55" (1/1) ... [2024-11-08 12:38:55,319 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-11-08 12:38:55,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55" (1/1) ... [2024-11-08 12:38:55,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55" (1/1) ... [2024-11-08 12:38:55,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55" (1/1) ... [2024-11-08 12:38:55,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55" (1/1) ... [2024-11-08 12:38:55,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55" (1/1) ... [2024-11-08 12:38:55,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55" (1/1) ... [2024-11-08 12:38:55,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:38:55,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:38:55,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:38:55,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:38:55,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55" (1/1) ... [2024-11-08 12:38:55,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:38:55,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 12:38:55,397 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 12:38:55,403 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 12:38:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:38:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 12:38:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 12:38:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 12:38:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 12:38:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:38:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 12:38:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 12:38:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 12:38:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 12:38:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 12:38:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 12:38:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 12:38:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 12:38:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 12:38:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 12:38:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 12:38:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 12:38:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:38:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:38:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 12:38:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 12:38:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 12:38:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 12:38:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:38:55,592 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:38:55,595 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:38:55,975 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-08 12:38:55,975 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:38:55,995 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:38:55,996 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 12:38:55,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:38:55 BoogieIcfgContainer [2024-11-08 12:38:55,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:38:55,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:38:55,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:38:56,003 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:38:56,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:38:54" (1/3) ... [2024-11-08 12:38:56,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705c787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:38:56, skipping insertion in model container [2024-11-08 12:38:56,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:38:55" (2/3) ... [2024-11-08 12:38:56,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705c787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:38:56, skipping insertion in model container [2024-11-08 12:38:56,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:38:55" (3/3) ... [2024-11-08 12:38:56,007 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2024-11-08 12:38:56,028 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:38:56,030 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:38:56,112 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 12:38:56,122 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;@7f549159, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:38:56,122 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:38:56,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.619047619047619) internal successors, (68), 43 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:38:56,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 12:38:56,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:38:56,135 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:38:56,135 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:38:56,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:38:56,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1902946910, now seen corresponding path program 1 times [2024-11-08 12:38:56,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:38:56,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768669052] [2024-11-08 12:38:56,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:38:56,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:38:56,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:38:56,320 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 12:38:56,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:38:56,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768669052] [2024-11-08 12:38:56,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768669052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:38:56,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:38:56,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:38:56,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285430309] [2024-11-08 12:38:56,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:38:56,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 12:38:56,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:38:56,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 12:38:56,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:38:56,359 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.619047619047619) internal successors, (68), 43 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 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 12:38:56,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:38:56,380 INFO L93 Difference]: Finished difference Result 86 states and 134 transitions. [2024-11-08 12:38:56,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:38:56,382 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 12:38:56,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:38:56,392 INFO L225 Difference]: With dead ends: 86 [2024-11-08 12:38:56,393 INFO L226 Difference]: Without dead ends: 41 [2024-11-08 12:38:56,396 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 12:38:56,400 INFO L432 NwaCegarLoop]: 58 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, 58 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 12:38:56,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:38:56,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-08 12:38:56,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-08 12:38:56,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 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 12:38:56,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2024-11-08 12:38:56,450 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2024-11-08 12:38:56,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:38:56,451 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2024-11-08 12:38:56,451 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 12:38:56,452 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2024-11-08 12:38:56,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 12:38:56,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:38:56,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:38:56,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 12:38:56,454 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:38:56,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:38:56,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1485403903, now seen corresponding path program 1 times [2024-11-08 12:38:56,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:38:56,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901929834] [2024-11-08 12:38:56,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:38:56,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:38:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:38:56,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 12:38:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:38:56,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 12:38:56,585 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 12:38:56,587 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:38:56,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 12:38:56,595 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 12:38:56,620 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:38:56,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:38:56 BoogieIcfgContainer [2024-11-08 12:38:56,626 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:38:56,627 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:38:56,628 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:38:56,628 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:38:56,629 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:38:55" (3/4) ... [2024-11-08 12:38:56,631 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 12:38:56,633 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:38:56,634 INFO L158 Benchmark]: Toolchain (without parser) took 1721.21ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 96.2MB in the beginning and 138.5MB in the end (delta: -42.3MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2024-11-08 12:38:56,634 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 153.1MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:38:56,635 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.32ms. Allocated memory is still 153.1MB. Free memory was 95.9MB in the beginning and 81.9MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 12:38:56,637 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.58ms. Allocated memory is still 153.1MB. Free memory was 81.9MB in the beginning and 79.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:38:56,637 INFO L158 Benchmark]: Boogie Preprocessor took 61.53ms. Allocated memory is still 153.1MB. Free memory was 79.8MB in the beginning and 77.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 12:38:56,638 INFO L158 Benchmark]: RCFGBuilder took 649.42ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 77.0MB in the beginning and 166.8MB in the end (delta: -89.8MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2024-11-08 12:38:56,638 INFO L158 Benchmark]: TraceAbstraction took 627.91ms. Allocated memory is still 201.3MB. Free memory was 165.7MB in the beginning and 139.5MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-08 12:38:56,639 INFO L158 Benchmark]: Witness Printer took 6.25ms. Allocated memory is still 201.3MB. Free memory was 139.5MB in the beginning and 138.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:38:56,645 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 153.1MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.32ms. Allocated memory is still 153.1MB. Free memory was 95.9MB in the beginning and 81.9MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.58ms. Allocated memory is still 153.1MB. Free memory was 81.9MB in the beginning and 79.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.53ms. Allocated memory is still 153.1MB. Free memory was 79.8MB in the beginning and 77.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 649.42ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 77.0MB in the beginning and 166.8MB in the end (delta: -89.8MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * TraceAbstraction took 627.91ms. Allocated memory is still 201.3MB. Free memory was 165.7MB in the beginning and 139.5MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 6.25ms. Allocated memory is still 201.3MB. Free memory was 139.5MB in the beginning and 138.5MB 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: 108]: 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 someBinaryFLOATComparisonOperation at line 107, overapproximation of someUnaryFLOAToperation at line 103, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L103] float x = -0.0f; [L104] CALL, EXPR __ieee754_sqrtf(x) [L17] float z; [L18] __uint32_t r, hx; [L19] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450953] [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (x) [L24] EXPR gf_u.word [L24] (ix) = gf_u.word [L26] hx = ix & 0x7fffffff VAL [hx=2147483647, ix=2147483647, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450953] [L28] COND TRUE !((hx) < 0x7f800000L) [L29] return x * x + x; VAL [ix=2147483647, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450953] [L104] RET, EXPR __ieee754_sqrtf(x) [L104] float res = __ieee754_sqrtf(x); [L107] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_sqrt=1, res=6442450952, tiny_sqrt=1/1000000000000000000000000000000] [L107] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L107] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L108] reach_error() VAL [one_sqrt=1, res=6442450952, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 58 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 12:38:56,676 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0730c.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 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 12:38:59,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:38:59,182 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 12:38:59,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:38:59,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:38:59,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:38:59,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:38:59,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:38:59,222 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 12:38:59,222 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 12:38:59,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:38:59,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:38:59,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:38:59,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:38:59,225 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:38:59,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:38:59,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:38:59,226 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:38:59,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:38:59,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:38:59,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:38:59,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:38:59,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:38:59,229 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 12:38:59,230 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 12:38:59,230 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:38:59,230 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 12:38:59,231 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:38:59,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:38:59,231 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:38:59,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:38:59,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:38:59,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:38:59,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:38:59,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:38:59,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:38:59,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:38:59,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:38:59,235 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 12:38:59,235 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 12:38:59,235 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:38:59,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 12:38:59,239 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 12:38:59,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 12:38:59,239 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a [2024-11-08 12:38:59,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:38:59,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:38:59,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:38:59,655 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:38:59,655 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:38:59,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2024-11-08 12:39:01,331 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:39:01,540 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:39:01,541 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2024-11-08 12:39:01,549 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62703f1ea/d34488cdf3c946a4b586be37642bc069/FLAG65d0bb305 [2024-11-08 12:39:01,571 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62703f1ea/d34488cdf3c946a4b586be37642bc069 [2024-11-08 12:39:01,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:39:01,576 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:39:01,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:39:01,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:39:01,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:39:01,585 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:01,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640ea4cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01, skipping insertion in model container [2024-11-08 12:39:01,589 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:01,616 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:39:01,888 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2024-11-08 12:39:01,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:39:01,919 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:39:01,966 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2024-11-08 12:39:01,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:39:01,997 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:39:01,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01 WrapperNode [2024-11-08 12:39:01,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:39:01,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:39:01,999 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:39:02,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:39:02,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:02,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:02,059 INFO L138 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 133 [2024-11-08 12:39:02,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:39:02,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:39:02,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:39:02,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:39:02,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:02,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:02,082 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:02,113 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-11-08 12:39:02,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:02,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:02,131 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:02,139 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:02,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:02,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:02,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:39:02,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:39:02,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:39:02,164 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:39:02,165 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01" (1/1) ... [2024-11-08 12:39:02,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:39:02,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 12:39:02,205 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 12:39:02,213 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 12:39:02,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:39:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 12:39:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 12:39:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 12:39:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 12:39:02,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:39:02,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-08 12:39:02,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-08 12:39:02,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-08 12:39:02,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-08 12:39:02,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 12:39:02,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 12:39:02,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 12:39:02,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 12:39:02,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:39:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:39:02,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-08 12:39:02,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-08 12:39:02,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-08 12:39:02,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-08 12:39:02,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 12:39:02,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 12:39:02,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 12:39:02,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-08 12:39:02,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:39:02,394 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:39:02,397 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:39:03,492 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-08 12:39:03,492 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:39:03,504 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:39:03,505 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 12:39:03,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:39:03 BoogieIcfgContainer [2024-11-08 12:39:03,505 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:39:03,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:39:03,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:39:03,514 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:39:03,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:39:01" (1/3) ... [2024-11-08 12:39:03,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467aff3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:39:03, skipping insertion in model container [2024-11-08 12:39:03,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:39:01" (2/3) ... [2024-11-08 12:39:03,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467aff3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:39:03, skipping insertion in model container [2024-11-08 12:39:03,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:39:03" (3/3) ... [2024-11-08 12:39:03,517 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2024-11-08 12:39:03,535 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:39:03,536 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:39:03,590 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 12:39:03,597 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;@1d31052a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:39:03,598 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:39:03,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:39:03,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 12:39:03,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:39:03,611 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:39:03,611 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:39:03,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:39:03,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2024-11-08 12:39:03,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:39:03,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741200191] [2024-11-08 12:39:03,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:39:03,634 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 12:39:03,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:39:03,638 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 12:39:03,639 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 12:39:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:39:03,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 12:39:03,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:39:03,815 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 12:39:03,815 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:39:03,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:39:03,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741200191] [2024-11-08 12:39:03,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741200191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:39:03,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:39:03,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:39:03,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238006497] [2024-11-08 12:39:03,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:39:03,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 12:39:03,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:39:03,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 12:39:03,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:39:03,854 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 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 12:39:03,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:39:03,874 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2024-11-08 12:39:03,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:39:03,876 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 12:39:03,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:39:03,885 INFO L225 Difference]: With dead ends: 72 [2024-11-08 12:39:03,886 INFO L226 Difference]: Without dead ends: 34 [2024-11-08 12:39:03,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 12:39:03,892 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 12:39:03,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:39:03,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-08 12:39:03,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-08 12:39:03,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:39:03,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2024-11-08 12:39:03,921 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2024-11-08 12:39:03,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:39:03,922 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2024-11-08 12:39:03,922 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 12:39:03,922 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-11-08 12:39:03,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 12:39:03,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:39:03,923 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:39:03,931 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 12:39:04,127 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 12:39:04,131 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:39:04,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:39:04,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2024-11-08 12:39:04,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:39:04,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818910954] [2024-11-08 12:39:04,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:39:04,133 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 12:39:04,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:39:04,135 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 12:39:04,136 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 12:39:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:39:04,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 12:39:04,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:39:04,501 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 12:39:04,501 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:39:04,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:39:04,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818910954] [2024-11-08 12:39:04,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818910954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:39:04,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:39:04,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 12:39:04,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349227578] [2024-11-08 12:39:04,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:39:04,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 12:39:04,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:39:04,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 12:39:04,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 12:39:04,507 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 12:39:04,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:39:04,616 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2024-11-08 12:39:04,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:39:04,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 12:39:04,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:39:04,617 INFO L225 Difference]: With dead ends: 43 [2024-11-08 12:39:04,618 INFO L226 Difference]: Without dead ends: 16 [2024-11-08 12:39:04,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 12:39:04,619 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 12:39:04,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 40 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 12:39:04,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-08 12:39:04,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-08 12:39:04,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:39:04,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-11-08 12:39:04,625 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2024-11-08 12:39:04,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:39:04,625 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-11-08 12:39:04,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 12:39:04,625 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-11-08 12:39:04,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 12:39:04,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:39:04,626 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:39:04,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-08 12:39:04,832 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 12:39:04,833 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:39:04,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:39:04,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2024-11-08 12:39:04,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:39:04,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802328276] [2024-11-08 12:39:04,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:39:04,835 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 12:39:04,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:39:04,838 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 12:39:04,839 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 12:39:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:39:04,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 12:39:04,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:39:04,992 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 12:39:04,993 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:39:04,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:39:04,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802328276] [2024-11-08 12:39:04,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802328276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:39:04,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:39:04,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 12:39:04,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067559811] [2024-11-08 12:39:04,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:39:04,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 12:39:04,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:39:04,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 12:39:04,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 12:39:04,996 INFO L87 Difference]: Start difference. First operand 16 states and 16 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 12:39:05,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:39:05,048 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2024-11-08 12:39:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 12:39:05,049 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 12:39:05,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:39:05,050 INFO L225 Difference]: With dead ends: 19 [2024-11-08 12:39:05,051 INFO L226 Difference]: Without dead ends: 16 [2024-11-08 12:39:05,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 12:39:05,053 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 12:39:05,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:39:05,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-08 12:39:05,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-08 12:39:05,059 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 12:39:05,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2024-11-08 12:39:05,059 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2024-11-08 12:39:05,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:39:05,059 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2024-11-08 12:39:05,060 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 12:39:05,060 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2024-11-08 12:39:05,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 12:39:05,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:39:05,061 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:39:05,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-08 12:39:05,265 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 12:39:05,266 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:39:05,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:39:05,267 INFO L85 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2024-11-08 12:39:05,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:39:05,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72847176] [2024-11-08 12:39:05,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:39:05,267 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 12:39:05,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:39:05,269 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 12:39:05,269 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 12:39:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:39:05,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 12:39:05,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:39:05,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 12:39:05,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-08 12:39:05,641 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 12:39:05,641 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:39:05,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:39:05,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72847176] [2024-11-08 12:39:05,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72847176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:39:05,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:39:05,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 12:39:05,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845667621] [2024-11-08 12:39:05,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:39:05,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 12:39:05,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:39:05,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 12:39:05,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 12:39:05,644 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 12:39:05,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:39:05,840 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2024-11-08 12:39:05,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 12:39:05,841 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 12:39:05,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:39:05,841 INFO L225 Difference]: With dead ends: 16 [2024-11-08 12:39:05,842 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 12:39:05,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-08 12:39:05,843 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 12:39:05,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 39 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 12:39:05,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 12:39:05,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 12:39:05,844 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 12:39:05,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 12:39:05,845 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2024-11-08 12:39:05,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:39:05,845 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 12:39:05,845 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 12:39:05,845 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 12:39:05,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 12:39:05,848 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:39:05,855 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 12:39:06,049 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 12:39:06,052 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-08 12:39:06,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 12:39:06,086 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:39:06,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:39:06 BoogieIcfgContainer [2024-11-08 12:39:06,120 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:39:06,121 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:39:06,121 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:39:06,122 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:39:06,122 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:39:03" (3/4) ... [2024-11-08 12:39:06,129 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 12:39:06,149 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-08 12:39:06,150 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-08 12:39:06,150 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 12:39:06,150 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 12:39:06,295 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 12:39:06,296 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 12:39:06,296 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:39:06,297 INFO L158 Benchmark]: Toolchain (without parser) took 4721.02ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 31.7MB in the beginning and 49.3MB in the end (delta: -17.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:39:06,297 INFO L158 Benchmark]: CDTParser took 1.46ms. Allocated memory is still 58.7MB. Free memory was 35.3MB in the beginning and 35.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:39:06,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.12ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 31.6MB in the beginning and 51.8MB in the end (delta: -20.2MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2024-11-08 12:39:06,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.35ms. Allocated memory is still 77.6MB. Free memory was 51.8MB in the beginning and 49.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:39:06,298 INFO L158 Benchmark]: Boogie Preprocessor took 98.92ms. Allocated memory is still 77.6MB. Free memory was 49.8MB in the beginning and 47.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:39:06,298 INFO L158 Benchmark]: RCFGBuilder took 1342.64ms. Allocated memory is still 77.6MB. Free memory was 47.1MB in the beginning and 52.2MB in the end (delta: -5.1MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-11-08 12:39:06,300 INFO L158 Benchmark]: TraceAbstraction took 2612.88ms. Allocated memory is still 77.6MB. Free memory was 51.3MB in the beginning and 55.0MB in the end (delta: -3.8MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2024-11-08 12:39:06,300 INFO L158 Benchmark]: Witness Printer took 175.00ms. Allocated memory is still 77.6MB. Free memory was 55.0MB in the beginning and 49.3MB in the end (delta: 5.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 12:39:06,302 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.46ms. Allocated memory is still 58.7MB. Free memory was 35.3MB in the beginning and 35.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.12ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 31.6MB in the beginning and 51.8MB in the end (delta: -20.2MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.35ms. Allocated memory is still 77.6MB. Free memory was 51.8MB in the beginning and 49.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.92ms. Allocated memory is still 77.6MB. Free memory was 49.8MB in the beginning and 47.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1342.64ms. Allocated memory is still 77.6MB. Free memory was 47.1MB in the beginning and 52.2MB in the end (delta: -5.1MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2612.88ms. Allocated memory is still 77.6MB. Free memory was 51.3MB in the beginning and 55.0MB in the end (delta: -3.8MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Witness Printer took 175.00ms. Allocated memory is still 77.6MB. Free memory was 55.0MB in the beginning and 49.3MB in the end (delta: 5.7MB). 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: 108]: 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, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 163 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 78 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 77 mSDtfsCounter, 78 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 1 QuantifiedInterpolants, 140 SizeOfPredicates, 6 NumberOfNonLiveVariables, 164 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-08 12:39:06,351 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