./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920b.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 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:20:08,501 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:20:08,556 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 17:20:08,560 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:20:08,561 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:20:08,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:20:08,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:20:08,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:20:08,586 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:20:08,588 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:20:08,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:20:08,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:20:08,588 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:20:08,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:20:08,589 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:20:08,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:20:08,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:20:08,591 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:20:08,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 17:20:08,592 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:20:08,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:20:08,592 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:20:08,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:20:08,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:20:08,595 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:20:08,596 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:20:08,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:20:08,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:20:08,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:20:08,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:20:08,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:20:08,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:20:08,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:20:08,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:20:08,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:20:08,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:20:08,598 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 17:20:08,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 17:20:08,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:20:08,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:20:08,599 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:20:08,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:20:08,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 [2024-10-12 17:20:08,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:20:08,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:20:08,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:20:08,823 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:20:08,824 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:20:08,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2024-10-12 17:20:10,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:20:10,343 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:20:10,343 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2024-10-12 17:20:10,353 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9a20f61/e52665cfdf27483580066246c644cf1c/FLAG797b8433d [2024-10-12 17:20:10,739 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9a20f61/e52665cfdf27483580066246c644cf1c [2024-10-12 17:20:10,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:20:10,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:20:10,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:20:10,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:20:10,751 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:20:10,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:20:10" (1/1) ... [2024-10-12 17:20:10,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de7796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:10, skipping insertion in model container [2024-10-12 17:20:10,752 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:20:10" (1/1) ... [2024-10-12 17:20:10,771 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:20:10,911 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2024-10-12 17:20:10,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:20:10,927 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 17:20:11,002 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2024-10-12 17:20:11,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:20:11,055 INFO L204 MainTranslator]: Completed translation [2024-10-12 17:20:11,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11 WrapperNode [2024-10-12 17:20:11,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 17:20:11,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 17:20:11,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 17:20:11,059 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 17:20:11,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11" (1/1) ... [2024-10-12 17:20:11,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11" (1/1) ... [2024-10-12 17:20:11,098 INFO L138 Inliner]: procedures = 19, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 190 [2024-10-12 17:20:11,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 17:20:11,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 17:20:11,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 17:20:11,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 17:20:11,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11" (1/1) ... [2024-10-12 17:20:11,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11" (1/1) ... [2024-10-12 17:20:11,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11" (1/1) ... [2024-10-12 17:20:11,129 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 2, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 2]. [2024-10-12 17:20:11,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11" (1/1) ... [2024-10-12 17:20:11,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11" (1/1) ... [2024-10-12 17:20:11,140 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11" (1/1) ... [2024-10-12 17:20:11,144 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11" (1/1) ... [2024-10-12 17:20:11,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11" (1/1) ... [2024-10-12 17:20:11,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11" (1/1) ... [2024-10-12 17:20:11,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 17:20:11,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 17:20:11,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 17:20:11,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 17:20:11,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11" (1/1) ... [2024-10-12 17:20:11,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:20:11,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 17:20:11,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 17:20:11,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 17:20:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 17:20:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 17:20:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 17:20:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-12 17:20:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-12 17:20:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 17:20:11,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 17:20:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 17:20:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 17:20:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-12 17:20:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-12 17:20:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 17:20:11,353 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 17:20:11,355 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 17:20:11,564 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-10-12 17:20:11,564 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 17:20:11,590 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 17:20:11,590 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-12 17:20:11,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:20:11 BoogieIcfgContainer [2024-10-12 17:20:11,591 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 17:20:11,593 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 17:20:11,593 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 17:20:11,597 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 17:20:11,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:20:10" (1/3) ... [2024-10-12 17:20:11,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7547d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:20:11, skipping insertion in model container [2024-10-12 17:20:11,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:11" (2/3) ... [2024-10-12 17:20:11,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7547d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:20:11, skipping insertion in model container [2024-10-12 17:20:11,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:20:11" (3/3) ... [2024-10-12 17:20:11,601 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2024-10-12 17:20:11,613 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 17:20:11,613 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 17:20:11,652 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 17:20:11,656 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;@532c76cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 17:20:11,656 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 17:20:11,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 43 states have (on average 1.697674418604651) internal successors, (73), 44 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:20:11,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-12 17:20:11,663 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:20:11,663 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:20:11,664 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:20:11,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:20:11,667 INFO L85 PathProgramCache]: Analyzing trace with hash -757537702, now seen corresponding path program 1 times [2024-10-12 17:20:11,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:20:11,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070048372] [2024-10-12 17:20:11,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:20:11,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:20:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:20:11,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:20:11,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 17:20:11,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070048372] [2024-10-12 17:20:11,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070048372] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:20:11,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:20:11,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:20:11,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055796600] [2024-10-12 17:20:11,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:20:11,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 17:20:11,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 17:20:11,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 17:20:11,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:20:11,801 INFO L87 Difference]: Start difference. First operand has 45 states, 43 states have (on average 1.697674418604651) internal successors, (73), 44 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:20:11,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:20:11,831 INFO L93 Difference]: Finished difference Result 89 states and 145 transitions. [2024-10-12 17:20:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 17:20:11,834 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-12 17:20:11,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:20:11,842 INFO L225 Difference]: With dead ends: 89 [2024-10-12 17:20:11,843 INFO L226 Difference]: Without dead ends: 43 [2024-10-12 17:20:11,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:20:11,848 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:20:11,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:20:11,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-12 17:20:11,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-10-12 17:20:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.5) internal successors, (63), 42 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:20:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 63 transitions. [2024-10-12 17:20:11,876 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 63 transitions. Word has length 8 [2024-10-12 17:20:11,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:20:11,876 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 63 transitions. [2024-10-12 17:20:11,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:20:11,877 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 63 transitions. [2024-10-12 17:20:11,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-12 17:20:11,877 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:20:11,877 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:20:11,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 17:20:11,878 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:20:11,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:20:11,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1704985593, now seen corresponding path program 1 times [2024-10-12 17:20:11,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:20:11,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021740557] [2024-10-12 17:20:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:20:11,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:20:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:20:11,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 17:20:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:20:11,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 17:20:11,980 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 17:20:11,981 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 17:20:11,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 17:20:11,985 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-12 17:20:12,003 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 17:20:12,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:20:12 BoogieIcfgContainer [2024-10-12 17:20:12,009 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 17:20:12,010 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 17:20:12,010 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 17:20:12,010 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 17:20:12,010 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:20:11" (3/4) ... [2024-10-12 17:20:12,014 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 17:20:12,015 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 17:20:12,017 INFO L158 Benchmark]: Toolchain (without parser) took 1274.03ms. Allocated memory is still 184.5MB. Free memory was 114.5MB in the beginning and 98.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2024-10-12 17:20:12,017 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:20:12,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.20ms. Allocated memory is still 184.5MB. Free memory was 114.3MB in the beginning and 153.7MB in the end (delta: -39.3MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-10-12 17:20:12,019 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.45ms. Allocated memory is still 184.5MB. Free memory was 153.7MB in the beginning and 151.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:20:12,019 INFO L158 Benchmark]: Boogie Preprocessor took 50.07ms. Allocated memory is still 184.5MB. Free memory was 151.6MB in the beginning and 148.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:20:12,020 INFO L158 Benchmark]: RCFGBuilder took 441.04ms. Allocated memory is still 184.5MB. Free memory was 148.6MB in the beginning and 127.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-12 17:20:12,021 INFO L158 Benchmark]: TraceAbstraction took 416.13ms. Allocated memory is still 184.5MB. Free memory was 126.5MB in the beginning and 98.3MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-12 17:20:12,021 INFO L158 Benchmark]: Witness Printer took 5.52ms. Allocated memory is still 184.5MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:20:12,023 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.20ms. Allocated memory is still 184.5MB. Free memory was 114.3MB in the beginning and 153.7MB in the end (delta: -39.3MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.45ms. Allocated memory is still 184.5MB. Free memory was 153.7MB in the beginning and 151.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.07ms. Allocated memory is still 184.5MB. Free memory was 151.6MB in the beginning and 148.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 441.04ms. Allocated memory is still 184.5MB. Free memory was 148.6MB in the beginning and 127.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 416.13ms. Allocated memory is still 184.5MB. Free memory was 126.5MB in the beginning and 98.3MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 5.52ms. Allocated memory is still 184.5MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 153]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 139, overapproximation of someBinaryArithmeticDOUBLEoperation at line 74. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L148] double x = -1.0 / 0.0; [L149] CALL, EXPR __ieee754_log(x) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, hx=2146435072, k=0, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=18014398509481985, two54_log=18014398509481984, x=18014398509481994, zero=0] [L60] COND FALSE !(hx < 0x00100000) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L73] COND TRUE hx >= 0x7ff00000 [L74] return x + x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, k=0, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=18014398509481985, two54_log=18014398509481984, x=18014398509481994, zero=0] [L149] RET, EXPR __ieee754_log(x) [L149] double res = __ieee754_log(x); [L152] CALL, EXPR isnan_double(res) [L139] return x != x; [L152] RET, EXPR isnan_double(res) [L152] COND TRUE !isnan_double(res) [L153] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 62 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 62 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2024-10-12 17:20:12,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920b.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 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:20:14,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:20:14,079 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-12 17:20:14,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:20:14,091 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:20:14,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:20:14,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:20:14,107 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:20:14,107 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:20:14,107 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:20:14,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:20:14,108 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:20:14,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:20:14,109 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:20:14,109 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:20:14,109 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:20:14,109 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:20:14,110 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:20:14,110 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:20:14,110 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:20:14,110 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:20:14,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:20:14,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:20:14,115 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-12 17:20:14,115 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-12 17:20:14,115 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:20:14,115 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-12 17:20:14,115 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:20:14,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:20:14,115 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:20:14,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:20:14,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:20:14,116 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:20:14,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:20:14,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:20:14,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:20:14,117 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:20:14,117 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:20:14,117 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-12 17:20:14,117 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-12 17:20:14,117 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:20:14,118 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:20:14,118 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:20:14,118 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:20:14,118 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-12 17:20:14,118 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 [2024-10-12 17:20:14,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:20:14,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:20:14,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:20:14,370 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:20:14,371 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:20:14,372 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2024-10-12 17:20:15,671 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:20:15,835 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:20:15,836 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2024-10-12 17:20:15,846 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c398a2895/4b56d83dcc564119afd270a3486ba708/FLAG49d9aba4b [2024-10-12 17:20:15,861 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c398a2895/4b56d83dcc564119afd270a3486ba708 [2024-10-12 17:20:15,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:20:15,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:20:15,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:20:15,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:20:15,872 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:20:15,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:20:15" (1/1) ... [2024-10-12 17:20:15,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5969fe09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:15, skipping insertion in model container [2024-10-12 17:20:15,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:20:15" (1/1) ... [2024-10-12 17:20:15,891 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:20:16,089 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2024-10-12 17:20:16,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:20:16,103 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 17:20:16,136 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2024-10-12 17:20:16,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:20:16,159 INFO L204 MainTranslator]: Completed translation [2024-10-12 17:20:16,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16 WrapperNode [2024-10-12 17:20:16,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 17:20:16,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 17:20:16,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 17:20:16,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 17:20:16,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16" (1/1) ... [2024-10-12 17:20:16,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16" (1/1) ... [2024-10-12 17:20:16,217 INFO L138 Inliner]: procedures = 22, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 147 [2024-10-12 17:20:16,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 17:20:16,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 17:20:16,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 17:20:16,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 17:20:16,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16" (1/1) ... [2024-10-12 17:20:16,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16" (1/1) ... [2024-10-12 17:20:16,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16" (1/1) ... [2024-10-12 17:20:16,251 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 2, 3, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 2]. [2024-10-12 17:20:16,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16" (1/1) ... [2024-10-12 17:20:16,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16" (1/1) ... [2024-10-12 17:20:16,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16" (1/1) ... [2024-10-12 17:20:16,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16" (1/1) ... [2024-10-12 17:20:16,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16" (1/1) ... [2024-10-12 17:20:16,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16" (1/1) ... [2024-10-12 17:20:16,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 17:20:16,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 17:20:16,288 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 17:20:16,288 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 17:20:16,289 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16" (1/1) ... [2024-10-12 17:20:16,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:20:16,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 17:20:16,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 17:20:16,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 17:20:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 17:20:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-10-12 17:20:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-10-12 17:20:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-10-12 17:20:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-10-12 17:20:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-10-12 17:20:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-10-12 17:20:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-10-12 17:20:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-10-12 17:20:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-12 17:20:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-12 17:20:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-12 17:20:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-12 17:20:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 17:20:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-12 17:20:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-12 17:20:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-12 17:20:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-12 17:20:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 17:20:16,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 17:20:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-12 17:20:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-12 17:20:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-12 17:20:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-12 17:20:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 17:20:16,443 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 17:20:16,445 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 17:20:57,260 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-10-12 17:20:57,261 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 17:20:57,292 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 17:20:57,292 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-12 17:20:57,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:20:57 BoogieIcfgContainer [2024-10-12 17:20:57,293 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 17:20:57,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 17:20:57,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 17:20:57,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 17:20:57,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:20:15" (1/3) ... [2024-10-12 17:20:57,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf4dea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:20:57, skipping insertion in model container [2024-10-12 17:20:57,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:20:16" (2/3) ... [2024-10-12 17:20:57,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf4dea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:20:57, skipping insertion in model container [2024-10-12 17:20:57,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:20:57" (3/3) ... [2024-10-12 17:20:57,299 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2024-10-12 17:20:57,316 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 17:20:57,317 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 17:20:57,372 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 17:20:57,378 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;@6d0ca613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 17:20:57,378 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 17:20:57,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 25 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:20:57,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-12 17:20:57,386 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:20:57,387 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:20:57,388 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:20:57,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:20:57,392 INFO L85 PathProgramCache]: Analyzing trace with hash -786783076, now seen corresponding path program 1 times [2024-10-12 17:20:57,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:20:57,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367960971] [2024-10-12 17:20:57,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:20:57,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:20:57,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:20:57,409 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:20:57,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-12 17:20:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:20:58,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 17:20:58,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:20:58,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:20:58,139 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:20:58,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:20:58,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367960971] [2024-10-12 17:20:58,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367960971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:20:58,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:20:58,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:20:58,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907659726] [2024-10-12 17:20:58,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:20:58,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 17:20:58,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:20:58,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 17:20:58,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:20:58,169 INFO L87 Difference]: Start difference. First operand has 26 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 25 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:20:58,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:20:58,313 INFO L93 Difference]: Finished difference Result 51 states and 85 transitions. [2024-10-12 17:20:58,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 17:20:58,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-12 17:20:58,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:20:58,323 INFO L225 Difference]: With dead ends: 51 [2024-10-12 17:20:58,324 INFO L226 Difference]: Without dead ends: 24 [2024-10-12 17:20:58,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:20:58,329 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 17:20:58,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 17:20:58,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-10-12 17:20:58,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-10-12 17:20:58,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:20:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 34 transitions. [2024-10-12 17:20:58,363 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 34 transitions. Word has length 8 [2024-10-12 17:20:58,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:20:58,363 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 34 transitions. [2024-10-12 17:20:58,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:20:58,364 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2024-10-12 17:20:58,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-12 17:20:58,366 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:20:58,366 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:20:58,384 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 [2024-10-12 17:20:58,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:20:58,567 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:20:58,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:20:58,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1830875409, now seen corresponding path program 1 times [2024-10-12 17:20:58,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:20:58,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549937364] [2024-10-12 17:20:58,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:20:58,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:20:58,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:20:58,572 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:20:58,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-12 17:20:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:20:59,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-12 17:20:59,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:21:00,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:21:00,594 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:21:00,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:21:00,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549937364] [2024-10-12 17:21:00,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549937364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:21:00,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:21:00,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 17:21:00,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130262738] [2024-10-12 17:21:00,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:21:00,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 17:21:00,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:21:00,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 17:21:00,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 17:21:00,596 INFO L87 Difference]: Start difference. First operand 24 states and 34 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2024-10-12 17:21:05,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-12 17:21:09,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-12 17:21:13,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-12 17:21:13,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:21:13,764 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2024-10-12 17:21:13,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 17:21:13,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 [2024-10-12 17:21:13,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:21:13,769 INFO L225 Difference]: With dead ends: 28 [2024-10-12 17:21:13,769 INFO L226 Difference]: Without dead ends: 11 [2024-10-12 17:21:13,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 17:21:13,775 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-10-12 17:21:13,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 3 Unknown, 0 Unchecked, 12.8s Time] [2024-10-12 17:21:13,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-10-12 17:21:13,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-10-12 17:21:13,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:21:13,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2024-10-12 17:21:13,783 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 9 [2024-10-12 17:21:13,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:21:13,783 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2024-10-12 17:21:13,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2024-10-12 17:21:13,784 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2024-10-12 17:21:13,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-12 17:21:13,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:21:13,784 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:21:13,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-12 17:21:13,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:21:13,987 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:21:13,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:21:13,990 INFO L85 PathProgramCache]: Analyzing trace with hash 921885399, now seen corresponding path program 1 times [2024-10-12 17:21:13,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:21:13,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482396115] [2024-10-12 17:21:13,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:21:13,991 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:21:13,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:21:13,994 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:21:13,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-12 17:21:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:21:14,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 17:21:14,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:21:17,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:21:17,644 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:21:17,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:21:17,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482396115] [2024-10-12 17:21:17,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482396115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:21:17,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:21:17,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 17:21:17,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497742780] [2024-10-12 17:21:17,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:21:17,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 17:21:17,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:21:17,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 17:21:17,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 17:21:17,650 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:21:18,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:21:18,728 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2024-10-12 17:21:18,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 17:21:18,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-12 17:21:18,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:21:18,730 INFO L225 Difference]: With dead ends: 11 [2024-10-12 17:21:18,730 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 17:21:18,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 17:21:18,731 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 17:21:18,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 17:21:18,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 17:21:18,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 17:21:18,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:21:18,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 17:21:18,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2024-10-12 17:21:18,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:21:18,732 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 17:21:18,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:21:18,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 17:21:18,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 17:21:18,735 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 17:21:18,758 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-12 17:21:18,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:21:18,943 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-12 17:21:18,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 17:21:19,718 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 17:21:19,748 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-12 17:21:19,754 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2024-10-12 17:21:19,754 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-12 17:21:19,754 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-12 17:21:19,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:21:19 BoogieIcfgContainer [2024-10-12 17:21:19,762 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 17:21:19,762 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 17:21:19,762 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 17:21:19,762 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 17:21:19,763 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:20:57" (3/4) ... [2024-10-12 17:21:19,790 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 17:21:19,797 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-10-12 17:21:19,798 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-12 17:21:19,798 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 17:21:19,798 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 17:21:19,921 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 17:21:19,922 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 17:21:19,922 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 17:21:19,923 INFO L158 Benchmark]: Toolchain (without parser) took 64058.70ms. Allocated memory was 83.9MB in the beginning and 157.3MB in the end (delta: 73.4MB). Free memory was 49.6MB in the beginning and 126.9MB in the end (delta: -77.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:21:19,923 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 83.9MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:21:19,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.54ms. Allocated memory is still 83.9MB. Free memory was 49.4MB in the beginning and 59.5MB in the end (delta: -10.1MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-10-12 17:21:19,923 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.53ms. Allocated memory is still 83.9MB. Free memory was 59.5MB in the beginning and 57.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:21:19,924 INFO L158 Benchmark]: Boogie Preprocessor took 69.92ms. Allocated memory is still 83.9MB. Free memory was 57.5MB in the beginning and 54.0MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:21:19,924 INFO L158 Benchmark]: RCFGBuilder took 41004.83ms. Allocated memory was 83.9MB in the beginning and 157.3MB in the end (delta: 73.4MB). Free memory was 54.0MB in the beginning and 134.5MB in the end (delta: -80.5MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2024-10-12 17:21:19,925 INFO L158 Benchmark]: TraceAbstraction took 22467.06ms. Allocated memory is still 157.3MB. Free memory was 133.8MB in the beginning and 133.2MB in the end (delta: 599.8kB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2024-10-12 17:21:19,925 INFO L158 Benchmark]: Witness Printer took 159.99ms. Allocated memory is still 157.3MB. Free memory was 133.2MB in the beginning and 126.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-12 17:21:19,927 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 83.9MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.54ms. Allocated memory is still 83.9MB. Free memory was 49.4MB in the beginning and 59.5MB in the end (delta: -10.1MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.53ms. Allocated memory is still 83.9MB. Free memory was 59.5MB in the beginning and 57.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.92ms. Allocated memory is still 83.9MB. Free memory was 57.5MB in the beginning and 54.0MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 41004.83ms. Allocated memory was 83.9MB in the beginning and 157.3MB in the end (delta: 73.4MB). Free memory was 54.0MB in the beginning and 134.5MB in the end (delta: -80.5MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * TraceAbstraction took 22467.06ms. Allocated memory is still 157.3MB. Free memory was 133.8MB in the beginning and 133.2MB in the end (delta: 599.8kB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Witness Printer took 159.99ms. Allocated memory is still 157.3MB. Free memory was 133.2MB in the beginning and 126.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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: 153]: 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, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 14.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 13.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 41 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 5 QuantifiedInterpolants, 225 SizeOfPredicates, 5 NumberOfNonLiveVariables, 128 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-10-12 17:21:20,148 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-10-12 17:21:20,220 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 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE