./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0720.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_0720.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 4e4c2067f061fded3c73bef3417c7b43200911ac0a27c4167dda41245285899f --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 11:50:18,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 11:50:18,794 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 11:50:18,798 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 11:50:18,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 11:50:18,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 11:50:18,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 11:50:18,820 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 11:50:18,820 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 11:50:18,820 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 11:50:18,821 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 11:50:18,821 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 11:50:18,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 11:50:18,821 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 11:50:18,822 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 11:50:18,822 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 11:50:18,822 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 11:50:18,822 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 11:50:18,822 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 11:50:18,822 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 11:50:18,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 11:50:18,823 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 11:50:18,823 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 11:50:18,823 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 11:50:18,823 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 11:50:18,823 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 11:50:18,823 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 11:50:18,823 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 11:50:18,823 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 11:50:18,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 11:50:18,824 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 11:50:18,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 11:50:18,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:50:18,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 11:50:18,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 11:50:18,824 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 11:50:18,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 11:50:18,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 11:50:18,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 11:50:18,824 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 11:50:18,824 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 11:50:18,825 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 11:50:18,825 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 11:50:18,825 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 4e4c2067f061fded3c73bef3417c7b43200911ac0a27c4167dda41245285899f [2025-03-03 11:50:19,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 11:50:19,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 11:50:19,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 11:50:19,089 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 11:50:19,089 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 11:50:19,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2025-03-03 11:50:20,335 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb75f65ce/775b00aba63948bf896650c3ccb6fa8b/FLAG8d868c22d [2025-03-03 11:50:20,534 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 11:50:20,535 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2025-03-03 11:50:20,567 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb75f65ce/775b00aba63948bf896650c3ccb6fa8b/FLAG8d868c22d [2025-03-03 11:50:20,586 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb75f65ce/775b00aba63948bf896650c3ccb6fa8b [2025-03-03 11:50:20,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 11:50:20,589 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 11:50:20,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 11:50:20,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 11:50:20,593 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 11:50:20,594 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54406d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20, skipping insertion in model container [2025-03-03 11:50:20,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,610 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 11:50:20,769 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_0720.c[3072,3085] [2025-03-03 11:50:20,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:50:20,778 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 11:50:20,810 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_0720.c[3072,3085] [2025-03-03 11:50:20,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:50:20,821 INFO L204 MainTranslator]: Completed translation [2025-03-03 11:50:20,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20 WrapperNode [2025-03-03 11:50:20,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 11:50:20,822 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 11:50:20,822 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 11:50:20,822 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 11:50:20,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,853 INFO L138 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 299 [2025-03-03 11:50:20,853 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 11:50:20,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 11:50:20,857 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 11:50:20,857 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 11:50:20,866 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,868 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,882 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 3, 3]. 38 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 2, 1]. [2025-03-03 11:50:20,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,889 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 11:50:20,901 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 11:50:20,901 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 11:50:20,901 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 11:50:20,902 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20" (1/1) ... [2025-03-03 11:50:20,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:50:20,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 11:50:20,930 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) [2025-03-03 11:50:20,934 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 [2025-03-03 11:50:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 11:50:20,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-03 11:50:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-03 11:50:21,033 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 11:50:21,034 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 11:50:21,384 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2025-03-03 11:50:21,384 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 11:50:21,409 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 11:50:21,410 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2025-03-03 11:50:21,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:50:21 BoogieIcfgContainer [2025-03-03 11:50:21,410 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 11:50:21,412 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 11:50:21,412 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 11:50:21,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 11:50:21,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 11:50:20" (1/3) ... [2025-03-03 11:50:21,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3af3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:50:21, skipping insertion in model container [2025-03-03 11:50:21,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:20" (2/3) ... [2025-03-03 11:50:21,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3af3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:50:21, skipping insertion in model container [2025-03-03 11:50:21,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:50:21" (3/3) ... [2025-03-03 11:50:21,417 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2025-03-03 11:50:21,426 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 11:50:21,428 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0720.c that has 1 procedures, 107 locations, 1 initial locations, 6 loop locations, and 3 error locations. [2025-03-03 11:50:21,465 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 11:50:21,473 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;@5575796a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 11:50:21,473 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-03 11:50:21,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 103 states have (on average 1.6213592233009708) internal successors, (167), 106 states have internal predecessors, (167), 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) [2025-03-03 11:50:21,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-03 11:50:21,479 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:50:21,479 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-03 11:50:21,479 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-03-03 11:50:21,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:50:21,483 INFO L85 PathProgramCache]: Analyzing trace with hash 221406, now seen corresponding path program 1 times [2025-03-03 11:50:21,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 11:50:21,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668214146] [2025-03-03 11:50:21,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:50:21,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 11:50:21,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-03 11:50:21,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-03 11:50:21,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:50:21,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 11:50:21,555 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 11:50:21,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-03 11:50:21,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-03 11:50:21,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:50:21,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 11:50:21,580 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 11:50:21,581 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 11:50:21,582 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 3 remaining) [2025-03-03 11:50:21,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2025-03-03 11:50:21,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 3 remaining) [2025-03-03 11:50:21,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 11:50:21,587 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-03 11:50:21,601 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 11:50:21,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 11:50:21 BoogieIcfgContainer [2025-03-03 11:50:21,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 11:50:21,606 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 11:50:21,606 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 11:50:21,606 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 11:50:21,606 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:50:21" (3/4) ... [2025-03-03 11:50:21,608 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 11:50:21,608 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 11:50:21,609 INFO L158 Benchmark]: Toolchain (without parser) took 1020.27ms. Allocated memory is still 142.6MB. Free memory was 108.2MB in the beginning and 43.3MB in the end (delta: 64.9MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-03 11:50:21,609 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 201.3MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:50:21,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.89ms. Allocated memory is still 142.6MB. Free memory was 108.2MB in the beginning and 94.5MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 11:50:21,610 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.06ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 92.3MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 11:50:21,610 INFO L158 Benchmark]: Boogie Preprocessor took 43.33ms. Allocated memory is still 142.6MB. Free memory was 92.3MB in the beginning and 89.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:50:21,610 INFO L158 Benchmark]: IcfgBuilder took 509.24ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 56.7MB in the end (delta: 32.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-03 11:50:21,611 INFO L158 Benchmark]: TraceAbstraction took 193.55ms. Allocated memory is still 142.6MB. Free memory was 56.0MB in the beginning and 43.3MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 11:50:21,612 INFO L158 Benchmark]: Witness Printer took 2.77ms. Allocated memory is still 142.6MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:50:21,614 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 201.3MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.89ms. Allocated memory is still 142.6MB. Free memory was 108.2MB in the beginning and 94.5MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.06ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 92.3MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.33ms. Allocated memory is still 142.6MB. Free memory was 92.3MB in the beginning and 89.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 509.24ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 56.7MB in the end (delta: 32.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 193.55ms. Allocated memory is still 142.6MB. Free memory was 56.0MB in the beginning and 43.3MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.77ms. Allocated memory is still 142.6MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 31]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 141, overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 31. Possible FailurePath: [L22] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L141] double x = 0.0 / 0.0; [L143] CALL __ieee754_sqrt(x) [L25] double z; [L26] __int32_t sign = 0x80000000; [L27] __uint32_t r, t1, s1, ix1, q1; [L28] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=53] [L31] ieee_double_shape_type ew_u; VAL [one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=53] - UnprovableResult [Line: 147]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 126]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 107 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-03 11:50:21,630 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/21.0.5-tem/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_1.6.800.v20240513-1750.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_0720.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 4e4c2067f061fded3c73bef3417c7b43200911ac0a27c4167dda41245285899f --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 11:50:23,542 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 11:50:23,623 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-03 11:50:23,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 11:50:23,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 11:50:23,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 11:50:23,659 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 11:50:23,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 11:50:23,659 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 11:50:23,659 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 11:50:23,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 11:50:23,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 11:50:23,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 11:50:23,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 11:50:23,660 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 11:50:23,661 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:50:23,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 11:50:23,661 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 4e4c2067f061fded3c73bef3417c7b43200911ac0a27c4167dda41245285899f [2025-03-03 11:50:23,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 11:50:23,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 11:50:23,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 11:50:23,935 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 11:50:23,935 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 11:50:23,936 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2025-03-03 11:50:25,159 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38c499007/879bd064327946f886eada4bc7133b06/FLAG9cbdbf526 [2025-03-03 11:50:25,375 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 11:50:25,376 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2025-03-03 11:50:25,384 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38c499007/879bd064327946f886eada4bc7133b06/FLAG9cbdbf526 [2025-03-03 11:50:25,405 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38c499007/879bd064327946f886eada4bc7133b06 [2025-03-03 11:50:25,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 11:50:25,408 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 11:50:25,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 11:50:25,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 11:50:25,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 11:50:25,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea7642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25, skipping insertion in model container [2025-03-03 11:50:25,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,432 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 11:50:25,583 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_0720.c[3072,3085] [2025-03-03 11:50:25,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:50:25,602 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 11:50:25,633 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_0720.c[3072,3085] [2025-03-03 11:50:25,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:50:25,646 INFO L204 MainTranslator]: Completed translation [2025-03-03 11:50:25,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25 WrapperNode [2025-03-03 11:50:25,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 11:50:25,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 11:50:25,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 11:50:25,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 11:50:25,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,684 INFO L138 Inliner]: procedures = 20, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 150 [2025-03-03 11:50:25,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 11:50:25,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 11:50:25,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 11:50:25,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 11:50:25,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,699 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,716 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 3, 3]. 38 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 1, 2]. [2025-03-03 11:50:25,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,717 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,727 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 11:50:25,738 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 11:50:25,738 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 11:50:25,738 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 11:50:25,739 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25" (1/1) ... [2025-03-03 11:50:25,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:50:25,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 11:50:25,775 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) [2025-03-03 11:50:25,779 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 [2025-03-03 11:50:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 11:50:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2025-03-03 11:50:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2025-03-03 11:50:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2025-03-03 11:50:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2025-03-03 11:50:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2025-03-03 11:50:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2025-03-03 11:50:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 11:50:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-03 11:50:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-03 11:50:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-03 11:50:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-03 11:50:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-03 11:50:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-03 11:50:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 11:50:25,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 11:50:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-03 11:50:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-03 11:50:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-03 11:50:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-03 11:50:25,885 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 11:50:25,887 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 11:50:30,548 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2025-03-03 11:50:30,548 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 11:50:30,556 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 11:50:30,558 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 11:50:30,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:50:30 BoogieIcfgContainer [2025-03-03 11:50:30,559 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 11:50:30,561 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 11:50:30,561 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 11:50:30,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 11:50:30,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 11:50:25" (1/3) ... [2025-03-03 11:50:30,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@775aa9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:50:30, skipping insertion in model container [2025-03-03 11:50:30,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:50:25" (2/3) ... [2025-03-03 11:50:30,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@775aa9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:50:30, skipping insertion in model container [2025-03-03 11:50:30,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:50:30" (3/3) ... [2025-03-03 11:50:30,568 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2025-03-03 11:50:30,590 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 11:50:30,591 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0720.c that has 1 procedures, 45 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2025-03-03 11:50:30,628 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 11:50:30,634 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;@234d3d45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 11:50:30,634 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 11:50:30,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 43 states have (on average 1.6046511627906976) internal successors, (69), 44 states have internal predecessors, (69), 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) [2025-03-03 11:50:30,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-03 11:50:30,640 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:50:30,641 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:50:30,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:50:30,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:50:30,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1823028120, now seen corresponding path program 1 times [2025-03-03 11:50:30,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:50:30,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702588200] [2025-03-03 11:50:30,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:50:30,653 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 [2025-03-03 11:50:30,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:50:30,658 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) [2025-03-03 11:50:30,659 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 [2025-03-03 11:50:30,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-03 11:50:30,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-03 11:50:30,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:50:30,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:50:30,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 11:50:30,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:50:30,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 11:50:30,935 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:50:30,936 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 11:50:30,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702588200] [2025-03-03 11:50:30,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702588200] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:50:30,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:50:30,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 11:50:30,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994401805] [2025-03-03 11:50:30,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:50:30,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 11:50:30,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 11:50:30,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 11:50:30,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 11:50:30,955 INFO L87 Difference]: Start difference. First operand has 45 states, 43 states have (on average 1.6046511627906976) internal successors, (69), 44 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:50:30,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:50:30,965 INFO L93 Difference]: Finished difference Result 88 states and 136 transitions. [2025-03-03 11:50:30,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 11:50:30,966 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-03 11:50:30,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:50:30,970 INFO L225 Difference]: With dead ends: 88 [2025-03-03 11:50:30,970 INFO L226 Difference]: Without dead ends: 42 [2025-03-03 11:50:30,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 11:50:30,974 INFO L435 NwaCegarLoop]: 64 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, 64 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 [2025-03-03 11:50:30,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 11:50:30,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2025-03-03 11:50:30,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2025-03-03 11:50:30,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.4878048780487805) internal successors, (61), 41 states have internal predecessors, (61), 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) [2025-03-03 11:50:30,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 61 transitions. [2025-03-03 11:50:30,995 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 61 transitions. Word has length 8 [2025-03-03 11:50:30,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:50:30,996 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 61 transitions. [2025-03-03 11:50:30,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:50:30,996 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 61 transitions. [2025-03-03 11:50:30,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-03 11:50:30,997 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:50:30,997 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:50:31,009 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 [2025-03-03 11:50:31,202 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 [2025-03-03 11:50:31,202 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:50:31,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:50:31,202 INFO L85 PathProgramCache]: Analyzing trace with hash -68692637, now seen corresponding path program 1 times [2025-03-03 11:50:31,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:50:31,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033648237] [2025-03-03 11:50:31,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:50:31,203 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 [2025-03-03 11:50:31,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:50:31,206 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) [2025-03-03 11:50:31,206 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 [2025-03-03 11:50:31,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-03 11:50:31,449 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-03 11:50:31,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:50:31,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:50:31,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-03 11:50:31,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:50:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 11:50:32,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:50:32,066 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 11:50:32,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033648237] [2025-03-03 11:50:32,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033648237] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:50:32,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:50:32,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 11:50:32,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036543947] [2025-03-03 11:50:32,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:50:32,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 11:50:32,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 11:50:32,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 11:50:32,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-03 11:50:32,070 INFO L87 Difference]: Start difference. First operand 42 states and 61 transitions. Second operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:50:34,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:50:34,435 INFO L93 Difference]: Finished difference Result 47 states and 65 transitions. [2025-03-03 11:50:34,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-03 11:50:34,436 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-03-03 11:50:34,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:50:34,436 INFO L225 Difference]: With dead ends: 47 [2025-03-03 11:50:34,436 INFO L226 Difference]: Without dead ends: 42 [2025-03-03 11:50:34,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-03 11:50:34,437 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 109 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-03 11:50:34,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 210 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-03 11:50:34,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2025-03-03 11:50:34,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2025-03-03 11:50:34,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 41 states have internal predecessors, (58), 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) [2025-03-03 11:50:34,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2025-03-03 11:50:34,441 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 9 [2025-03-03 11:50:34,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:50:34,441 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2025-03-03 11:50:34,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:50:34,441 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2025-03-03 11:50:34,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-03 11:50:34,441 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:50:34,441 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:50:34,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-03-03 11:50:34,642 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 [2025-03-03 11:50:34,643 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:50:34,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:50:34,643 INFO L85 PathProgramCache]: Analyzing trace with hash -137131456, now seen corresponding path program 1 times [2025-03-03 11:50:34,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:50:34,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353557444] [2025-03-03 11:50:34,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:50:34,644 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 [2025-03-03 11:50:34,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:50:34,646 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 11:50:34,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-03-03 11:50:34,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-03 11:50:34,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-03 11:50:34,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:50:34,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:50:34,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-03 11:50:34,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:50:35,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 11:50:35,041 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:50:35,041 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 11:50:35,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353557444] [2025-03-03 11:50:35,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353557444] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:50:35,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:50:35,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 11:50:35,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261094284] [2025-03-03 11:50:35,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:50:35,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 11:50:35,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 11:50:35,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 11:50:35,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 11:50:35,042 INFO L87 Difference]: Start difference. First operand 42 states and 58 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 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) [2025-03-03 11:50:35,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:50:35,176 INFO L93 Difference]: Finished difference Result 42 states and 58 transitions. [2025-03-03 11:50:35,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 11:50:35,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 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) Word has length 24 [2025-03-03 11:50:35,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:50:35,176 INFO L225 Difference]: With dead ends: 42 [2025-03-03 11:50:35,176 INFO L226 Difference]: Without dead ends: 0 [2025-03-03 11:50:35,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 11:50:35,177 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 11:50:35,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 11:50:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-03 11:50:35,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-03 11:50:35,178 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) [2025-03-03 11:50:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-03 11:50:35,178 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2025-03-03 11:50:35,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:50:35,178 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-03 11:50:35,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 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) [2025-03-03 11:50:35,178 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-03 11:50:35,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-03 11:50:35,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 11:50:35,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2025-03-03 11:50:35,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 11:50:35,383 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-03 11:50:35,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-03 11:50:35,590 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 11:50:35,596 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-03 11:50:35,597 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-03 11:50:35,597 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-03 11:50:35,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 11:50:35 BoogieIcfgContainer [2025-03-03 11:50:35,600 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 11:50:35,601 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 11:50:35,601 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 11:50:35,601 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 11:50:35,602 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:50:30" (3/4) ... [2025-03-03 11:50:35,603 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-03 11:50:35,609 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-03-03 11:50:35,609 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-03 11:50:35,609 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-03 11:50:35,610 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-03 11:50:35,681 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-03 11:50:35,681 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-03 11:50:35,681 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 11:50:35,682 INFO L158 Benchmark]: Toolchain (without parser) took 10273.70ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 66.7MB in the end (delta: 9.1MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2025-03-03 11:50:35,682 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:50:35,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.72ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 62.0MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 11:50:35,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.94ms. Allocated memory is still 100.7MB. Free memory was 62.0MB in the beginning and 60.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:50:35,684 INFO L158 Benchmark]: Boogie Preprocessor took 50.24ms. Allocated memory is still 100.7MB. Free memory was 60.4MB in the beginning and 58.1MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:50:35,684 INFO L158 Benchmark]: IcfgBuilder took 4821.27ms. Allocated memory is still 100.7MB. Free memory was 57.7MB in the beginning and 38.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 11:50:35,684 INFO L158 Benchmark]: TraceAbstraction took 5038.77ms. Allocated memory is still 100.7MB. Free memory was 38.2MB in the beginning and 72.9MB in the end (delta: -34.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2025-03-03 11:50:35,685 INFO L158 Benchmark]: Witness Printer took 80.60ms. Allocated memory is still 100.7MB. Free memory was 72.9MB in the beginning and 66.7MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:50:35,687 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.72ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 62.0MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.94ms. Allocated memory is still 100.7MB. Free memory was 62.0MB in the beginning and 60.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.24ms. Allocated memory is still 100.7MB. Free memory was 60.4MB in the beginning and 58.1MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 4821.27ms. Allocated memory is still 100.7MB. Free memory was 57.7MB in the beginning and 38.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5038.77ms. Allocated memory is still 100.7MB. Free memory was 38.2MB in the beginning and 72.9MB in the end (delta: -34.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Witness Printer took 80.60ms. Allocated memory is still 100.7MB. Free memory was 72.9MB in the beginning and 66.7MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode * 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: 147]: 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, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 279 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 159 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 120 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 3 QuantifiedInterpolants, 128 SizeOfPredicates, 5 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 21 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 125]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 74]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 87]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 50]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 55]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-03-03 11:50:35,784 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