./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.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 2353b893872e012206111abb166a426e9f40d30394d7ebef586e8dc818388f82 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 10:00:02,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 10:00:02,272 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 10:00:02,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 10:00:02,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 10:00:02,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 10:00:02,312 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 10:00:02,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 10:00:02,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 10:00:02,315 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 10:00:02,315 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 10:00:02,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 10:00:02,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 10:00:02,316 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 10:00:02,317 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 10:00:02,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 10:00:02,319 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 10:00:02,320 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 10:00:02,320 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 10:00:02,320 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 10:00:02,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 10:00:02,325 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 10:00:02,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 10:00:02,326 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 10:00:02,326 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 10:00:02,326 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 10:00:02,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 10:00:02,327 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 10:00:02,327 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 10:00:02,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 10:00:02,327 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 10:00:02,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 10:00:02,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:00:02,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 10:00:02,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 10:00:02,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 10:00:02,328 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 10:00:02,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 10:00:02,329 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 10:00:02,329 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 10:00:02,331 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 10:00:02,331 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 10:00:02,332 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2353b893872e012206111abb166a426e9f40d30394d7ebef586e8dc818388f82 [2024-11-16 10:00:02,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 10:00:02,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 10:00:02,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 10:00:02,579 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 10:00:02,580 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 10:00:02,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c [2024-11-16 10:00:03,963 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 10:00:04,188 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 10:00:04,189 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c [2024-11-16 10:00:04,202 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3154e55/98832832c6c446b3bcd88a826153d34b/FLAG21506318f [2024-11-16 10:00:04,214 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3154e55/98832832c6c446b3bcd88a826153d34b [2024-11-16 10:00:04,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 10:00:04,218 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 10:00:04,219 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 10:00:04,219 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 10:00:04,223 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 10:00:04,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a44ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04, skipping insertion in model container [2024-11-16 10:00:04,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,253 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 10:00:04,435 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/combinations/square_1+soft_float_5a.c.cil.c[1996,2009] [2024-11-16 10:00:04,443 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/combinations/square_1+soft_float_5a.c.cil.c[2365,2378] [2024-11-16 10:00:04,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:00:04,499 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 10:00:04,514 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/combinations/square_1+soft_float_5a.c.cil.c[1996,2009] [2024-11-16 10:00:04,519 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/combinations/square_1+soft_float_5a.c.cil.c[2365,2378] [2024-11-16 10:00:04,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:00:04,561 INFO L204 MainTranslator]: Completed translation [2024-11-16 10:00:04,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04 WrapperNode [2024-11-16 10:00:04,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 10:00:04,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 10:00:04,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 10:00:04,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 10:00:04,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,604 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-11-16 10:00:04,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 10:00:04,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 10:00:04,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 10:00:04,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 10:00:04,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,618 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,639 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 10:00:04,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,647 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 10:00:04,661 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 10:00:04,661 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 10:00:04,679 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 10:00:04,681 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04" (1/1) ... [2024-11-16 10:00:04,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:00:04,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:00:04,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 10:00:04,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 10:00:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 10:00:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-16 10:00:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-16 10:00:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 10:00:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 10:00:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 10:00:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 10:00:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 10:00:04,900 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 10:00:04,903 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 10:00:05,386 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2024-11-16 10:00:05,387 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 10:00:05,426 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 10:00:05,427 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 10:00:05,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:00:05 BoogieIcfgContainer [2024-11-16 10:00:05,427 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 10:00:05,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 10:00:05,430 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 10:00:05,433 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 10:00:05,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:00:04" (1/3) ... [2024-11-16 10:00:05,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bd8a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:00:05, skipping insertion in model container [2024-11-16 10:00:05,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:04" (2/3) ... [2024-11-16 10:00:05,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bd8a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:00:05, skipping insertion in model container [2024-11-16 10:00:05,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:00:05" (3/3) ... [2024-11-16 10:00:05,436 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_5a.c.cil.c [2024-11-16 10:00:05,454 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 10:00:05,455 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 10:00:05,515 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 10:00:05,523 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;@19a44a71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 10:00:05,524 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 10:00:05,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 82 states have (on average 1.4878048780487805) internal successors, (122), 85 states have internal predecessors, (122), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-16 10:00:05,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-16 10:00:05,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:05,540 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:05,541 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:05,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1911228837, now seen corresponding path program 1 times [2024-11-16 10:00:05,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:00:05,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834851448] [2024-11-16 10:00:05,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:05,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:00:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:05,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:00:05,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:00:05,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834851448] [2024-11-16 10:00:05,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834851448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:00:05,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:00:05,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 10:00:05,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825588967] [2024-11-16 10:00:05,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:00:05,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 10:00:05,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:00:05,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 10:00:05,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 10:00:05,741 INFO L87 Difference]: Start difference. First operand has 92 states, 82 states have (on average 1.4878048780487805) internal successors, (122), 85 states have internal predecessors, (122), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:00:05,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:00:05,791 INFO L93 Difference]: Finished difference Result 178 states and 260 transitions. [2024-11-16 10:00:05,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 10:00:05,793 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-11-16 10:00:05,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:00:05,800 INFO L225 Difference]: With dead ends: 178 [2024-11-16 10:00:05,801 INFO L226 Difference]: Without dead ends: 82 [2024-11-16 10:00:05,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 10:00:05,807 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 10:00:05,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 10:00:05,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-16 10:00:05,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-16 10:00:05,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-16 10:00:05,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 111 transitions. [2024-11-16 10:00:05,858 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 111 transitions. Word has length 7 [2024-11-16 10:00:05,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:00:05,859 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 111 transitions. [2024-11-16 10:00:05,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:00:05,860 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 111 transitions. [2024-11-16 10:00:05,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-16 10:00:05,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:05,861 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:05,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 10:00:05,861 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:05,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:05,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1911199046, now seen corresponding path program 1 times [2024-11-16 10:00:05,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:00:05,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097576007] [2024-11-16 10:00:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:05,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:00:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 10:00:05,884 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 10:00:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 10:00:05,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 10:00:05,920 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 10:00:05,922 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-16 10:00:05,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-16 10:00:05,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 10:00:05,927 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-16 10:00:05,937 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 10:00:05,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 10:00:05 BoogieIcfgContainer [2024-11-16 10:00:05,940 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 10:00:05,940 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 10:00:05,941 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 10:00:05,941 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 10:00:05,941 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:00:05" (3/4) ... [2024-11-16 10:00:05,943 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-16 10:00:05,944 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 10:00:05,944 INFO L158 Benchmark]: Toolchain (without parser) took 1726.39ms. Allocated memory is still 172.0MB. Free memory was 103.2MB in the beginning and 91.9MB in the end (delta: 11.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2024-11-16 10:00:05,945 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 10:00:05,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.66ms. Allocated memory is still 172.0MB. Free memory was 103.0MB in the beginning and 86.9MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-16 10:00:05,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.12ms. Allocated memory is still 172.0MB. Free memory was 86.7MB in the beginning and 84.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 10:00:05,946 INFO L158 Benchmark]: Boogie Preprocessor took 55.35ms. Allocated memory is still 172.0MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 10:00:05,946 INFO L158 Benchmark]: IcfgBuilder took 766.50ms. Allocated memory is still 172.0MB. Free memory was 82.5MB in the beginning and 118.3MB in the end (delta: -35.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-11-16 10:00:05,947 INFO L158 Benchmark]: TraceAbstraction took 509.84ms. Allocated memory is still 172.0MB. Free memory was 118.3MB in the beginning and 92.2MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-16 10:00:05,948 INFO L158 Benchmark]: Witness Printer took 3.29ms. Allocated memory is still 172.0MB. Free memory was 92.2MB in the beginning and 91.9MB in the end (delta: 300.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 10:00:05,952 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.66ms. Allocated memory is still 172.0MB. Free memory was 103.0MB in the beginning and 86.9MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.12ms. Allocated memory is still 172.0MB. Free memory was 86.7MB in the beginning and 84.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.35ms. Allocated memory is still 172.0MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 766.50ms. Allocated memory is still 172.0MB. Free memory was 82.5MB in the beginning and 118.3MB in the end (delta: -35.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * TraceAbstraction took 509.84ms. Allocated memory is still 172.0MB. Free memory was 118.3MB in the beginning and 92.2MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.29ms. Allocated memory is still 172.0MB. Free memory was 92.2MB in the beginning and 91.9MB in the end (delta: 300.5kB). 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: 48]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L47] COND TRUE !(result >= 0.0f && result < 1.39f) [L48] reach_error() - UnprovableResult [Line: 60]: 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 92 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 116 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-16 10:00:05,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.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 2353b893872e012206111abb166a426e9f40d30394d7ebef586e8dc818388f82 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 10:00:08,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 10:00:08,109 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-16 10:00:08,118 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 10:00:08,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 10:00:08,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 10:00:08,152 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 10:00:08,153 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 10:00:08,153 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 10:00:08,154 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 10:00:08,155 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 10:00:08,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 10:00:08,156 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 10:00:08,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 10:00:08,157 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 10:00:08,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 10:00:08,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 10:00:08,158 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 10:00:08,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 10:00:08,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 10:00:08,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 10:00:08,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 10:00:08,160 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 10:00:08,160 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-16 10:00:08,160 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-16 10:00:08,161 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 10:00:08,161 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-16 10:00:08,161 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 10:00:08,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 10:00:08,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 10:00:08,162 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 10:00:08,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 10:00:08,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 10:00:08,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 10:00:08,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:00:08,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 10:00:08,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 10:00:08,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 10:00:08,165 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-16 10:00:08,165 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-16 10:00:08,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 10:00:08,166 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 10:00:08,166 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 10:00:08,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 10:00:08,166 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2353b893872e012206111abb166a426e9f40d30394d7ebef586e8dc818388f82 [2024-11-16 10:00:08,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 10:00:08,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 10:00:08,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 10:00:08,534 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 10:00:08,534 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 10:00:08,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c [2024-11-16 10:00:10,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 10:00:10,340 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 10:00:10,341 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c [2024-11-16 10:00:10,357 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a59d80237/2530abbcb7914c49a6726da2e5cfa093/FLAG2d9507034 [2024-11-16 10:00:10,371 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a59d80237/2530abbcb7914c49a6726da2e5cfa093 [2024-11-16 10:00:10,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 10:00:10,376 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 10:00:10,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 10:00:10,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 10:00:10,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 10:00:10,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@584cfb5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10, skipping insertion in model container [2024-11-16 10:00:10,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,419 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 10:00:10,635 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/combinations/square_1+soft_float_5a.c.cil.c[1996,2009] [2024-11-16 10:00:10,643 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/combinations/square_1+soft_float_5a.c.cil.c[2365,2378] [2024-11-16 10:00:10,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:00:10,715 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 10:00:10,731 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/combinations/square_1+soft_float_5a.c.cil.c[1996,2009] [2024-11-16 10:00:10,736 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/combinations/square_1+soft_float_5a.c.cil.c[2365,2378] [2024-11-16 10:00:10,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:00:10,790 INFO L204 MainTranslator]: Completed translation [2024-11-16 10:00:10,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10 WrapperNode [2024-11-16 10:00:10,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 10:00:10,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 10:00:10,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 10:00:10,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 10:00:10,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,843 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2024-11-16 10:00:10,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 10:00:10,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 10:00:10,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 10:00:10,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 10:00:10,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,865 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,886 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 10:00:10,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,898 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,903 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,909 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 10:00:10,913 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 10:00:10,916 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 10:00:10,916 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 10:00:10,917 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10" (1/1) ... [2024-11-16 10:00:10,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:00:10,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:00:10,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 10:00:10,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 10:00:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 10:00:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-16 10:00:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-16 10:00:10,994 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-16 10:00:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 10:00:10,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 10:00:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 10:00:10,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 10:00:11,068 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 10:00:11,070 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 10:00:15,937 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-16 10:00:15,938 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 10:00:15,961 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 10:00:15,961 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 10:00:15,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:00:15 BoogieIcfgContainer [2024-11-16 10:00:15,962 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 10:00:15,964 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 10:00:15,964 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 10:00:15,967 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 10:00:15,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:00:10" (1/3) ... [2024-11-16 10:00:15,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28aacfda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:00:15, skipping insertion in model container [2024-11-16 10:00:15,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:00:10" (2/3) ... [2024-11-16 10:00:15,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28aacfda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:00:15, skipping insertion in model container [2024-11-16 10:00:15,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:00:15" (3/3) ... [2024-11-16 10:00:15,970 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_5a.c.cil.c [2024-11-16 10:00:15,983 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 10:00:15,984 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 10:00:16,032 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 10:00:16,038 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;@320e3a14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 10:00:16,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 10:00:16,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 59 states have (on average 1.4745762711864407) internal successors, (87), 62 states have internal predecessors, (87), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-16 10:00:16,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-16 10:00:16,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:16,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:16,052 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:16,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:16,058 INFO L85 PathProgramCache]: Analyzing trace with hash -830375250, now seen corresponding path program 1 times [2024-11-16 10:00:16,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 10:00:16,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163602996] [2024-11-16 10:00:16,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:16,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 10:00:16,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 10:00:16,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-16 10:00:16,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-16 10:00:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:16,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-16 10:00:16,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 10:00:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:00:16,479 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 10:00:16,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 10:00:16,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163602996] [2024-11-16 10:00:16,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163602996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:00:16,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:00:16,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 10:00:16,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637840849] [2024-11-16 10:00:16,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:00:16,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 10:00:16,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 10:00:16,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 10:00:16,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 10:00:16,505 INFO L87 Difference]: Start difference. First operand has 69 states, 59 states have (on average 1.4745762711864407) internal successors, (87), 62 states have internal predecessors, (87), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:00:16,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:00:16,529 INFO L93 Difference]: Finished difference Result 132 states and 190 transitions. [2024-11-16 10:00:16,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 10:00:16,532 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-11-16 10:00:16,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:00:16,540 INFO L225 Difference]: With dead ends: 132 [2024-11-16 10:00:16,540 INFO L226 Difference]: Without dead ends: 59 [2024-11-16 10:00:16,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 10:00:16,547 INFO L432 NwaCegarLoop]: 89 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, 89 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 10:00:16,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 10:00:16,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-16 10:00:16,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-16 10:00:16,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 52 states have internal predecessors, (69), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-16 10:00:16,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 78 transitions. [2024-11-16 10:00:16,580 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 78 transitions. Word has length 7 [2024-11-16 10:00:16,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:00:16,581 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 78 transitions. [2024-11-16 10:00:16,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:00:16,582 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 78 transitions. [2024-11-16 10:00:16,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-16 10:00:16,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:16,582 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:16,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-16 10:00:16,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 10:00:16,784 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:16,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:16,785 INFO L85 PathProgramCache]: Analyzing trace with hash -830345459, now seen corresponding path program 1 times [2024-11-16 10:00:16,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 10:00:16,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157975016] [2024-11-16 10:00:16,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:16,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 10:00:16,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 10:00:16,789 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-16 10:00:16,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-16 10:01:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 10:01:39,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.