./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1092b.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_1092b.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 b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 11:54:25,361 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 11:54:25,412 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 11:54:25,416 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 11:54:25,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 11:54:25,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 11:54:25,440 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 11:54:25,440 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 11:54:25,441 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 11:54:25,441 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 11:54:25,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 11:54:25,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 11:54:25,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 11:54:25,442 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 11:54:25,442 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 11:54:25,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 11:54:25,443 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 11:54:25,443 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 11:54:25,443 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 11:54:25,443 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 11:54:25,443 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 11:54:25,443 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 11:54:25,443 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 11:54:25,443 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 11:54:25,443 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 11:54:25,443 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 11:54:25,443 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 11:54:25,443 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 11:54:25,444 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 11:54:25,444 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 11:54:25,444 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 11:54:25,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 11:54:25,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:54:25,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 11:54:25,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 11:54:25,445 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 11:54:25,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 11:54:25,445 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 11:54:25,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 11:54:25,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 11:54:25,445 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 11:54:25,445 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 11:54:25,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 11:54:25,445 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 -> b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 [2025-03-03 11:54:25,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 11:54:25,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 11:54:25,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 11:54:25,671 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 11:54:25,671 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 11:54:25,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2025-03-03 11:54:26,792 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed12f3ad8/1bc0fe3123d0405b99547bfa0f3df2e7/FLAG7392c528f [2025-03-03 11:54:27,006 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 11:54:27,007 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2025-03-03 11:54:27,012 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed12f3ad8/1bc0fe3123d0405b99547bfa0f3df2e7/FLAG7392c528f [2025-03-03 11:54:27,364 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed12f3ad8/1bc0fe3123d0405b99547bfa0f3df2e7 [2025-03-03 11:54:27,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 11:54:27,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 11:54:27,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 11:54:27,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 11:54:27,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 11:54:27,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ede934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27, skipping insertion in model container [2025-03-03 11:54:27,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,383 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 11:54:27,506 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_1092b.c[2109,2122] [2025-03-03 11:54:27,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:54:27,513 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 11:54:27,536 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_1092b.c[2109,2122] [2025-03-03 11:54:27,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:54:27,556 INFO L204 MainTranslator]: Completed translation [2025-03-03 11:54:27,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27 WrapperNode [2025-03-03 11:54:27,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 11:54:27,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 11:54:27,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 11:54:27,558 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 11:54:27,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,580 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 171 [2025-03-03 11:54:27,581 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 11:54:27,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 11:54:27,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 11:54:27,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 11:54:27,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,589 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,598 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 11:54:27,598 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,598 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,603 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,603 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 11:54:27,610 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 11:54:27,610 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 11:54:27,610 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 11:54:27,611 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27" (1/1) ... [2025-03-03 11:54:27,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:54:27,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 11:54:27,634 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 11:54:27,636 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 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 11:54:27,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-03 11:54:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-03 11:54:27,706 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 11:54:27,707 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 11:54:27,908 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2025-03-03 11:54:27,908 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 11:54:27,927 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 11:54:27,927 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-03 11:54:27,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:54:27 BoogieIcfgContainer [2025-03-03 11:54:27,927 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 11:54:27,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 11:54:27,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 11:54:27,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 11:54:27,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 11:54:27" (1/3) ... [2025-03-03 11:54:27,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c5c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:54:27, skipping insertion in model container [2025-03-03 11:54:27,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:27" (2/3) ... [2025-03-03 11:54:27,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c5c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:54:27, skipping insertion in model container [2025-03-03 11:54:27,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:54:27" (3/3) ... [2025-03-03 11:54:27,935 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2025-03-03 11:54:27,944 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 11:54:27,946 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1092b.c that has 1 procedures, 65 locations, 1 initial locations, 2 loop locations, and 3 error locations. [2025-03-03 11:54:27,983 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 11:54:27,995 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;@cb8e040, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 11:54:27,995 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-03 11:54:28,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 61 states have (on average 1.6721311475409837) internal successors, (102), 64 states have internal predecessors, (102), 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 11:54:28,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-03 11:54:28,004 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:54:28,005 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-03 11:54:28,005 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 11:54:28,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:54:28,008 INFO L85 PathProgramCache]: Analyzing trace with hash 147924, now seen corresponding path program 1 times [2025-03-03 11:54:28,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 11:54:28,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545542289] [2025-03-03 11:54:28,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:54:28,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 11:54:28,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-03 11:54:28,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-03 11:54:28,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:54:28,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 11:54:28,071 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 11:54:28,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-03 11:54:28,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-03 11:54:28,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:54:28,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 11:54:28,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 11:54:28,092 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 11:54:28,093 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 3 remaining) [2025-03-03 11:54:28,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2025-03-03 11:54:28,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 3 remaining) [2025-03-03 11:54:28,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 11:54:28,099 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-03 11:54:28,112 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 11:54:28,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 11:54:28 BoogieIcfgContainer [2025-03-03 11:54:28,117 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 11:54:28,118 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 11:54:28,118 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 11:54:28,118 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 11:54:28,119 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:54:27" (3/4) ... [2025-03-03 11:54:28,121 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 11:54:28,122 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 11:54:28,122 INFO L158 Benchmark]: Toolchain (without parser) took 755.68ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 62.3MB in the end (delta: 50.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-03-03 11:54:28,123 INFO L158 Benchmark]: CDTParser took 0.98ms. Allocated memory is still 201.3MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:54:28,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.23ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 99.6MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 11:54:28,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.48ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 98.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 11:54:28,123 INFO L158 Benchmark]: Boogie Preprocessor took 25.74ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 95.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:54:28,123 INFO L158 Benchmark]: IcfgBuilder took 317.54ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 75.7MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 11:54:28,123 INFO L158 Benchmark]: TraceAbstraction took 188.00ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 62.3MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 11:54:28,124 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 142.6MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:54:28,125 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98ms. Allocated memory is still 201.3MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.23ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 99.6MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.48ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 98.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.74ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 95.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 317.54ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 75.7MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 188.00ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 62.3MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 142.6MB. Free memory is still 62.3MB. 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: 25]: 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 union with floats in the HoenickeLindenmann_Original memory model at line 25. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = 0.0; [L94] CALL ceil_double(x) [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L25] ieee_double_shape_type ew_u; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] - UnprovableResult [Line: 98]: 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: 77]: 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, 65 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=65occurred 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 11:54:28,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/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_1092b.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 b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 11:54:29,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 11:54:29,982 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-03 11:54:29,987 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 11:54:29,987 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 11:54:30,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 11:54:30,006 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 11:54:30,006 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 11:54:30,007 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 11:54:30,007 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 11:54:30,008 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 11:54:30,008 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 11:54:30,008 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 11:54:30,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 11:54:30,008 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 11:54:30,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 11:54:30,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 11:54:30,009 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 11:54:30,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 11:54:30,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 11:54:30,009 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 11:54:30,009 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 11:54:30,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 11:54:30,009 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 11:54:30,010 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 11:54:30,010 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 11:54:30,010 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 11:54:30,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 11:54:30,010 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 11:54:30,010 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 11:54:30,010 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 11:54:30,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 11:54:30,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 11:54:30,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 11:54:30,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:54:30,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 11:54:30,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 11:54:30,011 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 11:54:30,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 11:54:30,011 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 11:54:30,011 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 11:54:30,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 11:54:30,011 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 11:54:30,011 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 11:54:30,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 11:54:30,011 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 -> b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 [2025-03-03 11:54:30,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 11:54:30,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 11:54:30,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 11:54:30,260 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 11:54:30,261 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 11:54:30,262 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2025-03-03 11:54:31,479 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f897790f5/4797b5011ba54aeebd221225325c1d9e/FLAG108dc4aee [2025-03-03 11:54:31,650 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 11:54:31,650 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2025-03-03 11:54:31,656 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f897790f5/4797b5011ba54aeebd221225325c1d9e/FLAG108dc4aee [2025-03-03 11:54:31,671 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f897790f5/4797b5011ba54aeebd221225325c1d9e [2025-03-03 11:54:31,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 11:54:31,674 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 11:54:31,676 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 11:54:31,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 11:54:31,679 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 11:54:31,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f0fc37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31, skipping insertion in model container [2025-03-03 11:54:31,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,693 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 11:54:31,827 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_1092b.c[2109,2122] [2025-03-03 11:54:31,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:54:31,842 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 11:54:31,871 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_1092b.c[2109,2122] [2025-03-03 11:54:31,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:54:31,887 INFO L204 MainTranslator]: Completed translation [2025-03-03 11:54:31,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31 WrapperNode [2025-03-03 11:54:31,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 11:54:31,890 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 11:54:31,890 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 11:54:31,890 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 11:54:31,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,922 INFO L138 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2025-03-03 11:54:31,922 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 11:54:31,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 11:54:31,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 11:54:31,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 11:54:31,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,932 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,942 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 11:54:31,942 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,942 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,951 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 11:54:31,962 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 11:54:31,962 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 11:54:31,962 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 11:54:31,963 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31" (1/1) ... [2025-03-03 11:54:31,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:54:31,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 11:54:31,988 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 11:54:31,991 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 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 11:54:32,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-03 11:54:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-03 11:54:32,075 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 11:54:32,076 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 11:54:33,012 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2025-03-03 11:54:33,012 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 11:54:33,018 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 11:54:33,018 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 11:54:33,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:54:33 BoogieIcfgContainer [2025-03-03 11:54:33,019 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 11:54:33,020 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 11:54:33,020 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 11:54:33,023 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 11:54:33,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 11:54:31" (1/3) ... [2025-03-03 11:54:33,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d196b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:54:33, skipping insertion in model container [2025-03-03 11:54:33,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:54:31" (2/3) ... [2025-03-03 11:54:33,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d196b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:54:33, skipping insertion in model container [2025-03-03 11:54:33,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:54:33" (3/3) ... [2025-03-03 11:54:33,025 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2025-03-03 11:54:33,034 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 11:54:33,036 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1092b.c that has 1 procedures, 33 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-03 11:54:33,069 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 11:54:33,075 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;@42a0498b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 11:54:33,076 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 11:54:33,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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 11:54:33,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-03 11:54:33,082 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:54:33,082 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:54:33,082 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:54:33,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:54:33,085 INFO L85 PathProgramCache]: Analyzing trace with hash -421858573, now seen corresponding path program 1 times [2025-03-03 11:54:33,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:54:33,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660365077] [2025-03-03 11:54:33,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:54:33,092 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 11:54:33,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:54:33,094 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 11:54:33,096 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 11:54:33,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-03 11:54:33,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-03 11:54:33,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:54:33,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:54:33,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 11:54:33,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:54:33,170 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 11:54:33,170 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:54:33,171 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 11:54:33,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660365077] [2025-03-03 11:54:33,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660365077] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:54:33,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:54:33,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 11:54:33,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271219572] [2025-03-03 11:54:33,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:54:33,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 11:54:33,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 11:54:33,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 11:54:33,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 11:54:33,191 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:54:33,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:54:33,203 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2025-03-03 11:54:33,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 11:54:33,205 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-03 11:54:33,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:54:33,211 INFO L225 Difference]: With dead ends: 64 [2025-03-03 11:54:33,212 INFO L226 Difference]: Without dead ends: 30 [2025-03-03 11:54:33,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 11:54:33,218 INFO L435 NwaCegarLoop]: 47 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, 47 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 11:54:33,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 11:54:33,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-03-03 11:54:33,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2025-03-03 11:54:33,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 states have internal predecessors, (44), 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 11:54:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2025-03-03 11:54:33,238 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2025-03-03 11:54:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:54:33,239 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2025-03-03 11:54:33,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:54:33,239 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2025-03-03 11:54:33,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-03 11:54:33,239 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:54:33,239 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:54:33,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2025-03-03 11:54:33,440 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 11:54:33,440 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:54:33,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:54:33,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1110937811, now seen corresponding path program 1 times [2025-03-03 11:54:33,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:54:33,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860007394] [2025-03-03 11:54:33,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:54:33,441 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 11:54:33,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:54:33,443 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 11:54:33,445 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 11:54:33,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-03 11:54:33,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-03 11:54:33,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:54:33,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:54:33,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-03 11:54:33,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:54:33,655 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 11:54:33,658 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:54:33,658 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 11:54:33,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860007394] [2025-03-03 11:54:33,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860007394] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:54:33,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:54:33,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 11:54:33,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252689700] [2025-03-03 11:54:33,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:54:33,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 11:54:33,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 11:54:33,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 11:54:33,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 11:54:33,660 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:54:33,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:54:33,964 INFO L93 Difference]: Finished difference Result 41 states and 54 transitions. [2025-03-03 11:54:33,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 11:54:33,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-03-03 11:54:33,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:54:33,965 INFO L225 Difference]: With dead ends: 41 [2025-03-03 11:54:33,965 INFO L226 Difference]: Without dead ends: 21 [2025-03-03 11:54:33,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-03 11:54:33,967 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 20 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 11:54:33,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 23 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 11:54:33,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2025-03-03 11:54:33,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2025-03-03 11:54:33,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:54:33,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2025-03-03 11:54:33,969 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2025-03-03 11:54:33,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:54:33,969 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2025-03-03 11:54:33,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:54:33,969 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2025-03-03 11:54:33,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-03 11:54:33,970 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:54:33,970 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:54:33,973 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 11:54:34,170 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 11:54:34,171 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:54:34,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:54:34,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1044705327, now seen corresponding path program 1 times [2025-03-03 11:54:34,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:54:34,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900035757] [2025-03-03 11:54:34,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:54:34,174 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 11:54:34,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:54:34,176 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 11:54:34,177 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 11:54:34,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-03 11:54:34,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-03 11:54:34,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:54:34,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:54:34,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-03 11:54:34,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:54:34,376 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 11:54:34,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:54:34,377 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 11:54:34,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900035757] [2025-03-03 11:54:34,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900035757] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:54:34,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:54:34,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 11:54:34,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073845390] [2025-03-03 11:54:34,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:54:34,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 11:54:34,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 11:54:34,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 11:54:34,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 11:54:34,378 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:54:34,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:54:34,466 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2025-03-03 11:54:34,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 11:54:34,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-03-03 11:54:34,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:54:34,467 INFO L225 Difference]: With dead ends: 24 [2025-03-03 11:54:34,467 INFO L226 Difference]: Without dead ends: 17 [2025-03-03 11:54:34,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 11:54:34,468 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 11:54:34,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 18 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 11:54:34,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-03-03 11:54:34,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-03-03 11:54:34,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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 11:54:34,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2025-03-03 11:54:34,470 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2025-03-03 11:54:34,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:54:34,470 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2025-03-03 11:54:34,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:54:34,470 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2025-03-03 11:54:34,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-03 11:54:34,470 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:54:34,471 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:54:34,476 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 11:54:34,671 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 11:54:34,671 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:54:34,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:54:34,672 INFO L85 PathProgramCache]: Analyzing trace with hash 215825484, now seen corresponding path program 1 times [2025-03-03 11:54:34,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:54:34,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804213083] [2025-03-03 11:54:34,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:54:34,672 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 11:54:34,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:54:34,675 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 11:54:34,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-03-03 11:54:34,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-03 11:54:34,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-03 11:54:34,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:54:34,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:54:34,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-03 11:54:34,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:54:34,896 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 11:54:34,896 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:54:34,896 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 11:54:34,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [804213083] [2025-03-03 11:54:34,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [804213083] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:54:34,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:54:34,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 11:54:34,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864370557] [2025-03-03 11:54:34,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:54:34,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 11:54:34,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 11:54:34,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 11:54:34,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 11:54:34,897 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:54:35,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:54:35,004 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2025-03-03 11:54:35,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 11:54:35,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2025-03-03 11:54:35,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:54:35,005 INFO L225 Difference]: With dead ends: 24 [2025-03-03 11:54:35,005 INFO L226 Difference]: Without dead ends: 17 [2025-03-03 11:54:35,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 11:54:35,006 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 13 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 11:54:35,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 15 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 11:54:35,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-03-03 11:54:35,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-03-03 11:54:35,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0) internal successors, (16), 16 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:54:35,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2025-03-03 11:54:35,008 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2025-03-03 11:54:35,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:54:35,008 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2025-03-03 11:54:35,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:54:35,008 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2025-03-03 11:54:35,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-03 11:54:35,009 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:54:35,009 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:54:35,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2025-03-03 11:54:35,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 11:54:35,210 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:54:35,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:54:35,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1103329165, now seen corresponding path program 1 times [2025-03-03 11:54:35,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:54:35,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560167702] [2025-03-03 11:54:35,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:54:35,210 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 11:54:35,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:54:35,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 11:54:35,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2025-03-03 11:54:35,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-03 11:54:35,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-03 11:54:35,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:54:35,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:54:35,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-03 11:54:35,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:54:35,548 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 11:54:35,549 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:54:35,549 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 11:54:35,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560167702] [2025-03-03 11:54:35,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560167702] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:54:35,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:54:35,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-03 11:54:35,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500531271] [2025-03-03 11:54:35,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:54:35,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 11:54:35,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 11:54:35,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 11:54:35,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-03 11:54:35,550 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:54:35,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:54:35,763 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2025-03-03 11:54:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 11:54:35,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2025-03-03 11:54:35,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:54:35,764 INFO L225 Difference]: With dead ends: 17 [2025-03-03 11:54:35,764 INFO L226 Difference]: Without dead ends: 0 [2025-03-03 11:54:35,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-03 11:54:35,765 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 17 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-03 11:54:35,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 19 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-03 11:54:35,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-03 11:54:35,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-03 11:54:35,766 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 11:54:35,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-03 11:54:35,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2025-03-03 11:54:35,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:54:35,766 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-03 11:54:35,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:54:35,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-03 11:54:35,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-03 11:54:35,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 11:54:35,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2025-03-03 11:54:35,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 11:54:35,971 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-03 11:54:35,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-03 11:54:36,040 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 11:54:36,048 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2025-03-03 11:54:36,049 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-03 11:54:36,049 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2025-03-03 11:54:36,050 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-03 11:54:36,050 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-03 11:54:36,050 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2025-03-03 11:54:36,050 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-03 11:54:36,051 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2025-03-03 11:54:36,051 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-03 11:54:36,051 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-03 11:54:36,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 11:54:36 BoogieIcfgContainer [2025-03-03 11:54:36,052 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 11:54:36,053 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 11:54:36,053 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 11:54:36,053 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 11:54:36,053 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:54:33" (3/4) ... [2025-03-03 11:54:36,055 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-03 11:54:36,060 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-03-03 11:54:36,060 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-03 11:54:36,060 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-03 11:54:36,061 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-03 11:54:36,114 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-03 11:54:36,114 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-03 11:54:36,114 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 11:54:36,115 INFO L158 Benchmark]: Toolchain (without parser) took 4440.79ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 61.8MB in the end (delta: 30.9MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2025-03-03 11:54:36,115 INFO L158 Benchmark]: CDTParser took 1.08ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 61.9MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:54:36,115 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.38ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.1MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 11:54:36,115 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.76ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:54:36,115 INFO L158 Benchmark]: Boogie Preprocessor took 38.08ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 76.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:54:36,116 INFO L158 Benchmark]: IcfgBuilder took 1056.99ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 62.2MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 11:54:36,116 INFO L158 Benchmark]: TraceAbstraction took 3032.10ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 67.8MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:54:36,116 INFO L158 Benchmark]: Witness Printer took 61.75ms. Allocated memory is still 117.4MB. Free memory was 67.8MB in the beginning and 61.8MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 11:54:36,117 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 61.9MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.38ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.1MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.76ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.08ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 76.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1056.99ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 62.2MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3032.10ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 67.8MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 61.75ms. Allocated memory is still 117.4MB. Free memory was 67.8MB in the beginning and 61.8MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 98]: 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, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 122 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 85 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 19 QuantifiedInterpolants, 508 SizeOfPredicates, 17 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 76]: Location Invariant Derived location invariant: (0 == (i1 | i0)) RESULT: Ultimate proved your program to be correct! [2025-03-03 11:54:36,133 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