./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/float-newlib/double_req_bl_1012b.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 cc6b2c8924f3e77ddbe2cc4e366b62354008edf435e0402974f2ef8c5957612f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-21 23:25:55,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 23:25:55,783 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-21 23:25:55,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 23:25:55,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 23:25:55,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 23:25:55,817 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 23:25:55,817 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 23:25:55,818 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-21 23:25:55,819 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-21 23:25:55,819 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 23:25:55,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 23:25:55,820 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 23:25:55,821 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 23:25:55,821 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 23:25:55,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 23:25:55,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 23:25:55,825 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 23:25:55,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 23:25:55,826 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 23:25:55,826 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 23:25:55,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 23:25:55,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 23:25:55,826 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 23:25:55,826 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-21 23:25:55,827 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 23:25:55,827 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 23:25:55,827 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 23:25:55,827 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 23:25:55,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 23:25:55,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 23:25:55,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 23:25:55,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 23:25:55,828 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 23:25:55,828 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 23:25:55,828 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 23:25:55,830 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 23:25:55,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 23:25:55,830 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 23:25:55,831 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-21 23:25:55,831 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-21 23:25:55,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-21 23:25:55,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6b2c8924f3e77ddbe2cc4e366b62354008edf435e0402974f2ef8c5957612f [2024-11-21 23:25:56,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 23:25:56,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 23:25:56,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 23:25:56,032 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 23:25:56,033 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 23:25:56,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2024-11-21 23:25:57,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-21 23:25:57,423 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 23:25:57,424 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2024-11-21 23:25:57,429 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07af4961e/a17b2f29622a41a2ba2c35ff795dd504/FLAG5df0538e5 [2024-11-21 23:25:57,838 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07af4961e/a17b2f29622a41a2ba2c35ff795dd504 [2024-11-21 23:25:57,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 23:25:57,842 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 23:25:57,843 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 23:25:57,843 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 23:25:57,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 23:25:57,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:25:57" (1/1) ... [2024-11-21 23:25:57,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ebe421f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:57, skipping insertion in model container [2024-11-21 23:25:57,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:25:57" (1/1) ... [2024-11-21 23:25:57,867 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 23:25:58,010 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c[1640,1653] [2024-11-21 23:25:58,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 23:25:58,020 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 23:25:58,044 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c[1640,1653] [2024-11-21 23:25:58,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 23:25:58,058 INFO L204 MainTranslator]: Completed translation [2024-11-21 23:25:58,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58 WrapperNode [2024-11-21 23:25:58,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 23:25:58,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 23:25:58,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 23:25:58,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 23:25:58,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58" (1/1) ... [2024-11-21 23:25:58,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58" (1/1) ... [2024-11-21 23:25:58,093 INFO L138 Inliner]: procedures = 18, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2024-11-21 23:25:58,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 23:25:58,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 23:25:58,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 23:25:58,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 23:25:58,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58" (1/1) ... [2024-11-21 23:25:58,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58" (1/1) ... [2024-11-21 23:25:58,108 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58" (1/1) ... [2024-11-21 23:25:58,119 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]. [2024-11-21 23:25:58,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58" (1/1) ... [2024-11-21 23:25:58,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58" (1/1) ... [2024-11-21 23:25:58,125 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58" (1/1) ... [2024-11-21 23:25:58,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58" (1/1) ... [2024-11-21 23:25:58,132 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58" (1/1) ... [2024-11-21 23:25:58,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58" (1/1) ... [2024-11-21 23:25:58,136 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 23:25:58,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 23:25:58,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 23:25:58,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 23:25:58,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58" (1/1) ... [2024-11-21 23:25:58,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 23:25:58,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 23:25:58,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-21 23:25:58,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-21 23:25:58,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 23:25:58,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-21 23:25:58,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-21 23:25:58,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-21 23:25:58,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-21 23:25:58,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-21 23:25:58,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-21 23:25:58,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-21 23:25:58,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-21 23:25:58,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-21 23:25:58,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-21 23:25:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-21 23:25:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-21 23:25:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-21 23:25:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-21 23:25:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-21 23:25:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-21 23:25:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-21 23:25:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 23:25:58,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 23:25:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-21 23:25:58,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-21 23:25:58,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-21 23:25:58,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-21 23:25:58,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-21 23:25:58,304 INFO L238 CfgBuilder]: Building ICFG [2024-11-21 23:25:58,305 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 23:25:58,490 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-21 23:25:58,491 INFO L287 CfgBuilder]: Performing block encoding [2024-11-21 23:25:58,502 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 23:25:58,503 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-21 23:25:58,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:25:58 BoogieIcfgContainer [2024-11-21 23:25:58,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 23:25:58,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 23:25:58,520 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 23:25:58,523 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 23:25:58,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:25:57" (1/3) ... [2024-11-21 23:25:58,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50acc3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:25:58, skipping insertion in model container [2024-11-21 23:25:58,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:58" (2/3) ... [2024-11-21 23:25:58,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50acc3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:25:58, skipping insertion in model container [2024-11-21 23:25:58,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:25:58" (3/3) ... [2024-11-21 23:25:58,526 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012b.c [2024-11-21 23:25:58,540 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 23:25:58,540 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-21 23:25:58,581 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-21 23:25:58,587 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;@5179b80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 23:25:58,587 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 23:25:58,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 28 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:25:58,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-21 23:25:58,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 23:25:58,597 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 23:25:58,598 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 23:25:58,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 23:25:58,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1044191612, now seen corresponding path program 1 times [2024-11-21 23:25:58,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 23:25:58,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243118632] [2024-11-21 23:25:58,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 23:25:58,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 23:25:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 23:25:58,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 23:25:58,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 23:25:58,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243118632] [2024-11-21 23:25:58,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243118632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 23:25:58,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 23:25:58,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 23:25:58,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889460469] [2024-11-21 23:25:58,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 23:25:58,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-21 23:25:58,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 23:25:58,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-21 23:25:58,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 23:25:58,749 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 28 states have internal predecessors, (41), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:25:58,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 23:25:58,763 INFO L93 Difference]: Finished difference Result 56 states and 80 transitions. [2024-11-21 23:25:58,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 23:25:58,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-21 23:25:58,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 23:25:58,772 INFO L225 Difference]: With dead ends: 56 [2024-11-21 23:25:58,772 INFO L226 Difference]: Without dead ends: 26 [2024-11-21 23:25:58,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 23:25:58,778 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 23:25:58,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 23:25:58,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-21 23:25:58,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-21 23:25:58,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:25:58,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2024-11-21 23:25:58,819 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 16 [2024-11-21 23:25:58,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 23:25:58,819 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2024-11-21 23:25:58,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:25:58,820 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-11-21 23:25:58,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-21 23:25:58,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 23:25:58,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 23:25:58,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 23:25:58,821 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 23:25:58,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 23:25:58,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1266014218, now seen corresponding path program 1 times [2024-11-21 23:25:58,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 23:25:58,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265754628] [2024-11-21 23:25:58,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 23:25:58,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 23:25:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 23:25:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 23:25:59,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 23:25:59,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265754628] [2024-11-21 23:25:59,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265754628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 23:25:59,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 23:25:59,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 23:25:59,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92188415] [2024-11-21 23:25:59,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 23:25:59,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 23:25:59,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 23:25:59,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 23:25:59,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 23:25:59,250 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:25:59,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 23:25:59,288 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2024-11-21 23:25:59,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 23:25:59,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-11-21 23:25:59,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 23:25:59,291 INFO L225 Difference]: With dead ends: 35 [2024-11-21 23:25:59,291 INFO L226 Difference]: Without dead ends: 30 [2024-11-21 23:25:59,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 23:25:59,292 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 23:25:59,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 66 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 23:25:59,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-21 23:25:59,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2024-11-21 23:25:59,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 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) [2024-11-21 23:25:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2024-11-21 23:25:59,297 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 19 [2024-11-21 23:25:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 23:25:59,297 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2024-11-21 23:25:59,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:25:59,297 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2024-11-21 23:25:59,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-21 23:25:59,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 23:25:59,298 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 23:25:59,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 23:25:59,298 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 23:25:59,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 23:25:59,299 INFO L85 PathProgramCache]: Analyzing trace with hash -455347715, now seen corresponding path program 1 times [2024-11-21 23:25:59,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 23:25:59,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21675821] [2024-11-21 23:25:59,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 23:25:59,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 23:25:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 23:25:59,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 23:25:59,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 23:25:59,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21675821] [2024-11-21 23:25:59,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21675821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 23:25:59,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 23:25:59,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-21 23:25:59,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522292838] [2024-11-21 23:25:59,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 23:25:59,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 23:25:59,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 23:25:59,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 23:25:59,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-21 23:25:59,512 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:25:59,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 23:25:59,539 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2024-11-21 23:25:59,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 23:25:59,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-21 23:25:59,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 23:25:59,541 INFO L225 Difference]: With dead ends: 34 [2024-11-21 23:25:59,541 INFO L226 Difference]: Without dead ends: 29 [2024-11-21 23:25:59,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-21 23:25:59,543 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 23:25:59,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 23:25:59,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-21 23:25:59,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2024-11-21 23:25:59,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:25:59,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2024-11-21 23:25:59,550 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 20 [2024-11-21 23:25:59,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 23:25:59,550 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2024-11-21 23:25:59,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:25:59,551 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2024-11-21 23:25:59,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-21 23:25:59,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 23:25:59,551 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 23:25:59,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 23:25:59,552 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 23:25:59,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 23:25:59,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1445772851, now seen corresponding path program 1 times [2024-11-21 23:25:59,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 23:25:59,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618918474] [2024-11-21 23:25:59,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 23:25:59,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 23:25:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 23:25:59,595 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-21 23:25:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 23:25:59,649 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-21 23:25:59,649 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-21 23:25:59,650 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-21 23:25:59,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-21 23:25:59,655 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-21 23:25:59,674 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-21 23:25:59,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 11:25:59 BoogieIcfgContainer [2024-11-21 23:25:59,680 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-21 23:25:59,681 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-21 23:25:59,681 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-21 23:25:59,681 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-21 23:25:59,681 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:25:58" (3/4) ... [2024-11-21 23:25:59,684 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-21 23:25:59,685 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-21 23:25:59,686 INFO L158 Benchmark]: Toolchain (without parser) took 1843.91ms. Allocated memory was 161.5MB in the beginning and 213.9MB in the end (delta: 52.4MB). Free memory was 88.0MB in the beginning and 88.4MB in the end (delta: -426.9kB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2024-11-21 23:25:59,686 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 161.5MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 23:25:59,687 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.12ms. Allocated memory is still 161.5MB. Free memory was 87.7MB in the beginning and 74.6MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-21 23:25:59,687 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.09ms. Allocated memory is still 161.5MB. Free memory was 74.6MB in the beginning and 72.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 23:25:59,687 INFO L158 Benchmark]: Boogie Preprocessor took 41.72ms. Allocated memory is still 161.5MB. Free memory was 72.8MB in the beginning and 70.4MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-21 23:25:59,688 INFO L158 Benchmark]: RCFGBuilder took 365.39ms. Allocated memory is still 161.5MB. Free memory was 70.0MB in the beginning and 127.9MB in the end (delta: -57.8MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2024-11-21 23:25:59,689 INFO L158 Benchmark]: TraceAbstraction took 1160.79ms. Allocated memory is still 213.9MB. Free memory was 183.5MB in the beginning and 88.4MB in the end (delta: 95.1MB). Peak memory consumption was 92.0MB. Max. memory is 16.1GB. [2024-11-21 23:25:59,689 INFO L158 Benchmark]: Witness Printer took 4.14ms. Allocated memory is still 213.9MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 23:25:59,690 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 161.5MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.12ms. Allocated memory is still 161.5MB. Free memory was 87.7MB in the beginning and 74.6MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.09ms. Allocated memory is still 161.5MB. Free memory was 74.6MB in the beginning and 72.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.72ms. Allocated memory is still 161.5MB. Free memory was 72.8MB in the beginning and 70.4MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 365.39ms. Allocated memory is still 161.5MB. Free memory was 70.0MB in the beginning and 127.9MB in the end (delta: -57.8MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1160.79ms. Allocated memory is still 213.9MB. Free memory was 183.5MB in the beginning and 88.4MB in the end (delta: 95.1MB). Peak memory consumption was 92.0MB. Max. memory is 16.1GB. * Witness Printer took 4.14ms. Allocated memory is still 213.9MB. Free memory is still 88.4MB. 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: 75]: 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 bitwiseOr at line 43, overapproximation of someBinaryArithmeticDOUBLEoperation at line 70. Possible FailurePath: [L70] double x = -1.0 / 0.0; [L71] CALL, EXPR fabs_double(x) [L47] __uint32_t high; VAL [x=4294967316] [L49] ieee_double_shape_type gh_u; [L50] gh_u.value = (x) [L51] EXPR gh_u.parts.msw [L51] (high) = gh_u.parts.msw [L54] ieee_double_shape_type sh_u; [L55] sh_u.value = (x) [L56] sh_u.parts.msw = (high & 0x7fffffff) [L57] EXPR sh_u.value [L57] (x) = sh_u.value [L59] return x; VAL [\result=4294967316, high=9] [L71] RET, EXPR fabs_double(x) [L71] double res = fabs_double(x); [L74] CALL, EXPR isinf_double(res) [L33] __int32_t hx, lx; VAL [x=4294967316] [L35] ieee_double_shape_type ew_u; [L36] ew_u.value = (x) [L37] EXPR ew_u.parts.msw [L37] (hx) = ew_u.parts.msw [L38] EXPR ew_u.parts.lsw [L38] (lx) = ew_u.parts.lsw [L40] hx &= 0x7fffffff VAL [hx=0, lx=0, x=4294967316] [L41] EXPR lx | (-lx) VAL [hx=0, x=4294967316] [L41] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L42] hx = 0x7ff00000 - hx VAL [hx=2146435072, x=4294967316] [L43] EXPR hx | (-hx) VAL [x=4294967316] [L43] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L74] RET, EXPR isinf_double(res) [L74] COND TRUE !isinf_double(res) [L75] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 209 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 119 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 90 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-21 23:25:59,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/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 ../sv-benchmarks/c/float-newlib/double_req_bl_1012b.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 cc6b2c8924f3e77ddbe2cc4e366b62354008edf435e0402974f2ef8c5957612f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-21 23:26:01,520 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 23:26:01,587 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-21 23:26:01,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 23:26:01,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 23:26:01,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 23:26:01,620 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 23:26:01,620 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 23:26:01,621 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-21 23:26:01,621 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-21 23:26:01,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 23:26:01,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 23:26:01,622 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 23:26:01,622 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 23:26:01,623 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 23:26:01,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 23:26:01,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 23:26:01,623 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 23:26:01,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 23:26:01,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 23:26:01,626 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 23:26:01,627 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 23:26:01,627 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 23:26:01,627 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-21 23:26:01,627 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-21 23:26:01,627 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-21 23:26:01,628 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-21 23:26:01,628 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 23:26:01,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 23:26:01,628 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 23:26:01,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 23:26:01,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 23:26:01,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 23:26:01,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 23:26:01,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 23:26:01,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 23:26:01,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 23:26:01,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 23:26:01,631 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-21 23:26:01,631 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-21 23:26:01,631 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 23:26:01,631 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-21 23:26:01,632 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-21 23:26:01,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-21 23:26:01,632 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6b2c8924f3e77ddbe2cc4e366b62354008edf435e0402974f2ef8c5957612f [2024-11-21 23:26:01,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 23:26:01,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 23:26:01,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 23:26:01,943 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 23:26:01,943 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 23:26:01,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2024-11-21 23:26:03,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-21 23:26:03,399 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 23:26:03,400 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2024-11-21 23:26:03,405 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c9df422/205da58b47bb4316ba41a2341acd9087/FLAG6129999f5 [2024-11-21 23:26:03,813 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c9df422/205da58b47bb4316ba41a2341acd9087 [2024-11-21 23:26:03,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 23:26:03,816 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 23:26:03,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 23:26:03,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 23:26:03,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 23:26:03,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:26:03" (1/1) ... [2024-11-21 23:26:03,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5829e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:03, skipping insertion in model container [2024-11-21 23:26:03,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:26:03" (1/1) ... [2024-11-21 23:26:03,844 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 23:26:04,014 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c[1640,1653] [2024-11-21 23:26:04,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 23:26:04,031 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 23:26:04,054 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c[1640,1653] [2024-11-21 23:26:04,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 23:26:04,073 INFO L204 MainTranslator]: Completed translation [2024-11-21 23:26:04,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04 WrapperNode [2024-11-21 23:26:04,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 23:26:04,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 23:26:04,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 23:26:04,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 23:26:04,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04" (1/1) ... [2024-11-21 23:26:04,093 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04" (1/1) ... [2024-11-21 23:26:04,115 INFO L138 Inliner]: procedures = 21, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2024-11-21 23:26:04,116 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 23:26:04,117 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 23:26:04,117 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 23:26:04,117 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 23:26:04,125 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04" (1/1) ... [2024-11-21 23:26:04,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04" (1/1) ... [2024-11-21 23:26:04,130 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04" (1/1) ... [2024-11-21 23:26:04,146 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 2, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 2, 1, 1]. [2024-11-21 23:26:04,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04" (1/1) ... [2024-11-21 23:26:04,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04" (1/1) ... [2024-11-21 23:26:04,155 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04" (1/1) ... [2024-11-21 23:26:04,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04" (1/1) ... [2024-11-21 23:26:04,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04" (1/1) ... [2024-11-21 23:26:04,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04" (1/1) ... [2024-11-21 23:26:04,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 23:26:04,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 23:26:04,174 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 23:26:04,174 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 23:26:04,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04" (1/1) ... [2024-11-21 23:26:04,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 23:26:04,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 23:26:04,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-21 23:26:04,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-21 23:26:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 23:26:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-21 23:26:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-21 23:26:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-21 23:26:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-21 23:26:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-21 23:26:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-21 23:26:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-21 23:26:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-21 23:26:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-21 23:26:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-21 23:26:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-21 23:26:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-21 23:26:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-21 23:26:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-21 23:26:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-21 23:26:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-21 23:26:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-21 23:26:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 23:26:04,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 23:26:04,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-21 23:26:04,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-21 23:26:04,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-21 23:26:04,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-21 23:26:04,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-21 23:26:04,328 INFO L238 CfgBuilder]: Building ICFG [2024-11-21 23:26:04,329 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 23:26:04,494 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-21 23:26:04,494 INFO L287 CfgBuilder]: Performing block encoding [2024-11-21 23:26:04,507 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 23:26:04,508 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-21 23:26:04,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:26:04 BoogieIcfgContainer [2024-11-21 23:26:04,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 23:26:04,512 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 23:26:04,512 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 23:26:04,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 23:26:04,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:26:03" (1/3) ... [2024-11-21 23:26:04,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2319ce8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:26:04, skipping insertion in model container [2024-11-21 23:26:04,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:26:04" (2/3) ... [2024-11-21 23:26:04,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2319ce8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:26:04, skipping insertion in model container [2024-11-21 23:26:04,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:26:04" (3/3) ... [2024-11-21 23:26:04,518 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012b.c [2024-11-21 23:26:04,533 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 23:26:04,533 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-21 23:26:04,583 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-21 23:26:04,590 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;@64f7f3e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 23:26:04,590 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 23:26:04,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:26:04,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-21 23:26:04,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 23:26:04,600 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 23:26:04,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 23:26:04,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 23:26:04,606 INFO L85 PathProgramCache]: Analyzing trace with hash -969083750, now seen corresponding path program 1 times [2024-11-21 23:26:04,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-21 23:26:04,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377268940] [2024-11-21 23:26:04,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 23:26:04,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-21 23:26:04,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-21 23:26:04,619 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-21 23:26:04,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-21 23:26:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 23:26:04,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-21 23:26:04,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 23:26:04,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 23:26:04,725 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 23:26:04,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-21 23:26:04,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377268940] [2024-11-21 23:26:04,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377268940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 23:26:04,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 23:26:04,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 23:26:04,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973956640] [2024-11-21 23:26:04,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 23:26:04,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-21 23:26:04,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-21 23:26:04,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-21 23:26:04,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 23:26:04,752 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:26:04,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 23:26:04,762 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2024-11-21 23:26:04,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 23:26:04,764 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-21 23:26:04,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 23:26:04,770 INFO L225 Difference]: With dead ends: 34 [2024-11-21 23:26:04,770 INFO L226 Difference]: Without dead ends: 15 [2024-11-21 23:26:04,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 23:26:04,777 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 23:26:04,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 23:26:04,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-21 23:26:04,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-21 23:26:04,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0) internal successors, (14), 14 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:26:04,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2024-11-21 23:26:04,803 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2024-11-21 23:26:04,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 23:26:04,803 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2024-11-21 23:26:04,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:26:04,804 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2024-11-21 23:26:04,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-21 23:26:04,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 23:26:04,805 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 23:26:04,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-21 23:26:05,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-21 23:26:05,006 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 23:26:05,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 23:26:05,008 INFO L85 PathProgramCache]: Analyzing trace with hash 657368916, now seen corresponding path program 1 times [2024-11-21 23:26:05,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-21 23:26:05,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899490535] [2024-11-21 23:26:05,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 23:26:05,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-21 23:26:05,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-21 23:26:05,011 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-21 23:26:05,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-21 23:26:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 23:26:05,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-21 23:26:05,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 23:26:05,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 23:26:05,906 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 23:26:05,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-21 23:26:05,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899490535] [2024-11-21 23:26:05,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899490535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 23:26:05,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 23:26:05,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-21 23:26:05,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449762304] [2024-11-21 23:26:05,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 23:26:05,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-21 23:26:05,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-21 23:26:05,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-21 23:26:05,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-21 23:26:05,909 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:26:06,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 23:26:06,312 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2024-11-21 23:26:06,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 23:26:06,312 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 14 [2024-11-21 23:26:06,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 23:26:06,312 INFO L225 Difference]: With dead ends: 15 [2024-11-21 23:26:06,313 INFO L226 Difference]: Without dead ends: 0 [2024-11-21 23:26:06,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-21 23:26:06,314 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-21 23:26:06,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 32 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-21 23:26:06,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-21 23:26:06,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-21 23:26:06,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:26:06,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-21 23:26:06,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-21 23:26:06,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 23:26:06,315 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-21 23:26:06,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 23:26:06,315 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-21 23:26:06,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-21 23:26:06,319 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-21 23:26:06,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-21 23:26:06,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-21 23:26:06,522 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-21 23:26:06,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-21 23:26:06,555 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-21 23:26:06,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 11:26:06 BoogieIcfgContainer [2024-11-21 23:26:06,562 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-21 23:26:06,562 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-21 23:26:06,563 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-21 23:26:06,563 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-21 23:26:06,563 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:26:04" (3/4) ... [2024-11-21 23:26:06,564 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-21 23:26:06,570 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-21 23:26:06,571 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-21 23:26:06,571 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-21 23:26:06,571 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-21 23:26:06,684 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-21 23:26:06,685 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-21 23:26:06,685 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-21 23:26:06,686 INFO L158 Benchmark]: Toolchain (without parser) took 2869.47ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 34.6MB in the beginning and 75.3MB in the end (delta: -40.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2024-11-21 23:26:06,686 INFO L158 Benchmark]: CDTParser took 1.06ms. Allocated memory is still 73.4MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 23:26:06,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.73ms. Allocated memory is still 73.4MB. Free memory was 34.4MB in the beginning and 42.3MB in the end (delta: -8.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-11-21 23:26:06,687 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.58ms. Allocated memory is still 73.4MB. Free memory was 42.3MB in the beginning and 40.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-21 23:26:06,687 INFO L158 Benchmark]: Boogie Preprocessor took 56.43ms. Allocated memory is still 73.4MB. Free memory was 40.5MB in the beginning and 38.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-21 23:26:06,688 INFO L158 Benchmark]: RCFGBuilder took 334.74ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 38.1MB in the beginning and 72.2MB in the end (delta: -34.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-21 23:26:06,688 INFO L158 Benchmark]: TraceAbstraction took 2049.84ms. Allocated memory is still 100.7MB. Free memory was 71.8MB in the beginning and 43.7MB in the end (delta: 28.1MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2024-11-21 23:26:06,688 INFO L158 Benchmark]: Witness Printer took 122.42ms. Allocated memory is still 100.7MB. Free memory was 43.0MB in the beginning and 75.3MB in the end (delta: -32.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-21 23:26:06,689 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.06ms. Allocated memory is still 73.4MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.73ms. Allocated memory is still 73.4MB. Free memory was 34.4MB in the beginning and 42.3MB in the end (delta: -8.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.58ms. Allocated memory is still 73.4MB. Free memory was 42.3MB in the beginning and 40.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.43ms. Allocated memory is still 73.4MB. Free memory was 40.5MB in the beginning and 38.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 334.74ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 38.1MB in the beginning and 72.2MB in the end (delta: -34.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2049.84ms. Allocated memory is still 100.7MB. Free memory was 71.8MB in the beginning and 43.7MB in the end (delta: 28.1MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * Witness Printer took 122.42ms. Allocated memory is still 100.7MB. Free memory was 43.0MB in the beginning and 75.3MB in the end (delta: -32.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 75]: 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 22 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 11 QuantifiedInterpolants, 668 SizeOfPredicates, 6 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-21 23:26:06,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE