./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 00:20:21,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:20:21,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 00:20:21,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:20:21,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:20:21,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:20:21,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:20:21,885 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:20:21,886 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:20:21,886 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:20:21,888 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:20:21,888 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:20:21,890 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:20:21,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:20:21,892 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:20:21,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:20:21,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:20:21,893 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:20:21,893 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 00:20:21,894 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:20:21,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:20:21,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:20:21,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:20:21,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:20:21,896 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:20:21,896 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:20:21,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:20:21,897 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:20:21,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:20:21,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:20:21,898 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:20:21,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:20:21,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:20:21,898 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:20:21,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:20:21,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:20:21,899 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 00:20:21,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 00:20:21,900 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:20:21,900 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:20:21,900 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:20:21,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:20:21,901 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2024-10-11 00:20:22,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:20:22,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:20:22,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:20:22,224 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:20:22,224 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:20:22,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2024-10-11 00:20:23,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:20:23,985 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:20:23,986 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2024-10-11 00:20:23,993 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5652c7e48/d134b5870b0e42f3b33b361b096dfc86/FLAGf27e932af [2024-10-11 00:20:24,373 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5652c7e48/d134b5870b0e42f3b33b361b096dfc86 [2024-10-11 00:20:24,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:20:24,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:20:24,379 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:20:24,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:20:24,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:20:24,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1204d386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24, skipping insertion in model container [2024-10-11 00:20:24,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:20:24,625 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2024-10-11 00:20:24,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:20:24,667 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:20:24,678 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2024-10-11 00:20:24,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:20:24,717 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:20:24,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24 WrapperNode [2024-10-11 00:20:24,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:20:24,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:20:24,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:20:24,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:20:24,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,752 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-10-11 00:20:24,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:20:24,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:20:24,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:20:24,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:20:24,765 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,767 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,789 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]. [2024-10-11 00:20:24,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,790 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,799 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:20:24,808 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:20:24,809 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:20:24,809 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:20:24,809 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:20:24,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:20:24,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:20:24,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:20:24,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:20:24,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 00:20:24,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:20:24,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:20:24,975 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:20:24,978 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:20:25,126 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-10-11 00:20:25,127 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:20:25,171 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:20:25,172 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 00:20:25,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:25 BoogieIcfgContainer [2024-10-11 00:20:25,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:20:25,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:20:25,177 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:20:25,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:20:25,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:20:24" (1/3) ... [2024-10-11 00:20:25,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e71f3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:25, skipping insertion in model container [2024-10-11 00:20:25,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24" (2/3) ... [2024-10-11 00:20:25,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e71f3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:25, skipping insertion in model container [2024-10-11 00:20:25,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:25" (3/3) ... [2024-10-11 00:20:25,185 INFO L112 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2024-10-11 00:20:25,203 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:20:25,204 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:20:25,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:20:25,284 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;@6292f1ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:20:25,285 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:20:25,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 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) [2024-10-11 00:20:25,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-11 00:20:25,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:20:25,300 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:20:25,301 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:20:25,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:20:25,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1854402494, now seen corresponding path program 1 times [2024-10-11 00:20:25,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:20:25,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989185538] [2024-10-11 00:20:25,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:20:25,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:20:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:20:25,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:20:25,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 00:20:25,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989185538] [2024-10-11 00:20:25,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989185538] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:20:25,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:20:25,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 00:20:25,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815449929] [2024-10-11 00:20:25,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:20:25,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 00:20:25,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 00:20:25,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 00:20:25,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:20:25,533 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:20:25,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:20:25,558 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2024-10-11 00:20:25,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 00:20:25,562 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-11 00:20:25,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:20:25,580 INFO L225 Difference]: With dead ends: 26 [2024-10-11 00:20:25,581 INFO L226 Difference]: Without dead ends: 12 [2024-10-11 00:20:25,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:20:25,595 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:20:25,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 00:20:25,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-10-11 00:20:25,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-11 00:20:25,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:20:25,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2024-10-11 00:20:25,635 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 9 [2024-10-11 00:20:25,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:20:25,636 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-10-11 00:20:25,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:20:25,637 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-10-11 00:20:25,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-11 00:20:25,637 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:20:25,638 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:20:25,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 00:20:25,638 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:20:25,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:20:25,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1631218176, now seen corresponding path program 1 times [2024-10-11 00:20:25,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:20:25,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441567554] [2024-10-11 00:20:25,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:20:25,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:20:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:20:25,676 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 00:20:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:20:25,732 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 00:20:25,732 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 00:20:25,735 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 00:20:25,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 00:20:25,741 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-11 00:20:25,762 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 00:20:25,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:20:25 BoogieIcfgContainer [2024-10-11 00:20:25,770 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 00:20:25,771 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 00:20:25,771 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 00:20:25,771 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 00:20:25,772 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:25" (3/4) ... [2024-10-11 00:20:25,774 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 00:20:25,776 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 00:20:25,777 INFO L158 Benchmark]: Toolchain (without parser) took 1398.85ms. Allocated memory was 130.0MB in the beginning and 184.5MB in the end (delta: 54.5MB). Free memory was 59.7MB in the beginning and 109.6MB in the end (delta: -49.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-10-11 00:20:25,778 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 130.0MB. Free memory was 100.1MB in the beginning and 99.9MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:20:25,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.02ms. Allocated memory was 130.0MB in the beginning and 184.5MB in the end (delta: 54.5MB). Free memory was 59.5MB in the beginning and 149.5MB in the end (delta: -90.0MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-10-11 00:20:25,780 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.30ms. Allocated memory is still 184.5MB. Free memory was 149.5MB in the beginning and 148.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:20:25,780 INFO L158 Benchmark]: Boogie Preprocessor took 53.94ms. Allocated memory is still 184.5MB. Free memory was 148.3MB in the beginning and 146.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:20:25,781 INFO L158 Benchmark]: RCFGBuilder took 363.98ms. Allocated memory is still 184.5MB. Free memory was 146.5MB in the beginning and 134.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-11 00:20:25,781 INFO L158 Benchmark]: TraceAbstraction took 593.88ms. Allocated memory is still 184.5MB. Free memory was 133.9MB in the beginning and 109.6MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 00:20:25,782 INFO L158 Benchmark]: Witness Printer took 5.30ms. Allocated memory is still 184.5MB. Free memory is still 109.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:20:25,784 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 130.0MB. Free memory was 100.1MB in the beginning and 99.9MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.02ms. Allocated memory was 130.0MB in the beginning and 184.5MB in the end (delta: 54.5MB). Free memory was 59.5MB in the beginning and 149.5MB in the end (delta: -90.0MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.30ms. Allocated memory is still 184.5MB. Free memory was 149.5MB in the beginning and 148.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.94ms. Allocated memory is still 184.5MB. Free memory was 148.3MB in the beginning and 146.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 363.98ms. Allocated memory is still 184.5MB. Free memory was 146.5MB in the beginning and 134.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 593.88ms. Allocated memory is still 184.5MB. Free memory was 133.9MB in the beginning and 109.6MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 5.30ms. Allocated memory is still 184.5MB. Free memory is still 109.6MB. 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: 14]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 56, overapproximation of someUnaryDOUBLEoperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 32. Possible FailurePath: [L16] double C1 = 4.16666666666666019037e-02; [L17] double C2 = -1.38888888888741095749e-03; [L18] double C3 = 2.48015872894767294178e-05; [L19] double C4 = -2.75573143513906633035e-07; [L20] double C5 = 2.08757232129817482790e-09; [L21] double C6 = -1.13596475577881948265e-11; [L49] double a, r; [L51] a = __VERIFIER_nondet_double() [L52] CALL assume_abort_if_not(a >= -0.5 && a <= 0.75) [L12] COND FALSE !(!cond) VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L52] RET assume_abort_if_not(a >= -0.5 && a <= 0.75) [L54] CALL, EXPR mcos(a) [L25] double a, hz, z, r, qx, zr; [L26] z = x*x VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L27] COND TRUE x < 0. [L27] x = -x VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L28] hz = 0.5 * z [L29] r = z*(C1+z*(C2+z*(C3+z*(C4+z*(C5+z*C6))))) [L30] zr = z*r VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L31] COND TRUE x < 0.3 [L32] return 1.-(hz-zr); VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L54] RET, EXPR mcos(a) [L54] r = mcos(a) [L56] CALL __VERIFIER_assert(r >= 0. && r <= 1.1) [L14] COND TRUE !(cond) VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L14] reach_error() VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 2 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=14occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-11 00:20:25,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 00:20:28,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:20:28,195 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-11 00:20:28,202 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:20:28,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:20:28,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:20:28,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:20:28,242 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:20:28,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:20:28,243 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:20:28,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:20:28,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:20:28,244 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:20:28,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:20:28,244 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:20:28,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:20:28,248 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:20:28,248 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:20:28,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:20:28,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:20:28,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:20:28,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:20:28,252 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:20:28,252 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 00:20:28,252 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 00:20:28,253 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:20:28,253 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 00:20:28,253 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:20:28,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:20:28,254 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:20:28,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:20:28,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:20:28,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:20:28,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:20:28,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:20:28,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:20:28,269 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:20:28,269 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:20:28,269 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 00:20:28,270 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 00:20:28,270 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:20:28,271 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:20:28,271 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:20:28,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:20:28,271 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 00:20:28,272 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2024-10-11 00:20:28,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:20:28,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:20:28,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:20:28,660 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:20:28,661 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:20:28,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2024-10-11 00:20:30,270 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:20:30,478 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:20:30,478 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2024-10-11 00:20:30,493 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ffbe1cf49/5604d9022ad045d1b9832fa3f46ed335/FLAG994ba2e64 [2024-10-11 00:20:30,517 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ffbe1cf49/5604d9022ad045d1b9832fa3f46ed335 [2024-10-11 00:20:30,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:20:30,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:20:30,524 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:20:30,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:20:30,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:20:30,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b37f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30, skipping insertion in model container [2024-10-11 00:20:30,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,563 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:20:30,782 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2024-10-11 00:20:30,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:20:30,820 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:20:30,833 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2024-10-11 00:20:30,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:20:30,869 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:20:30,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30 WrapperNode [2024-10-11 00:20:30,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:20:30,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:20:30,871 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:20:30,871 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:20:30,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,888 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,908 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-10-11 00:20:30,910 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:20:30,911 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:20:30,911 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:20:30,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:20:30,922 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,925 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,939 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]. [2024-10-11 00:20:30,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,959 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:20:30,962 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:20:30,962 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:20:30,962 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:20:30,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30" (1/1) ... [2024-10-11 00:20:30,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:20:30,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:20:30,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:20:31,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:20:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:20:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 00:20:31,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:20:31,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:20:31,136 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:20:31,141 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:20:41,683 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-10-11 00:20:41,684 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:20:41,727 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:20:41,728 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 00:20:41,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:41 BoogieIcfgContainer [2024-10-11 00:20:41,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:20:41,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:20:41,731 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:20:41,736 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:20:41,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:20:30" (1/3) ... [2024-10-11 00:20:41,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576e4b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:41, skipping insertion in model container [2024-10-11 00:20:41,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:30" (2/3) ... [2024-10-11 00:20:41,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576e4b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:41, skipping insertion in model container [2024-10-11 00:20:41,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:41" (3/3) ... [2024-10-11 00:20:41,741 INFO L112 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2024-10-11 00:20:41,758 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:20:41,759 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:20:41,824 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:20:41,830 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;@7b99ad49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:20:41,830 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:20:41,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 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) [2024-10-11 00:20:41,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-11 00:20:41,841 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:20:41,842 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:20:41,842 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:20:41,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:20:41,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1854402494, now seen corresponding path program 1 times [2024-10-11 00:20:41,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:20:41,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101366259] [2024-10-11 00:20:41,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:20:41,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:20:41,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:20:41,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 00:20:41,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-11 00:20:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:20:43,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 00:20:43,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:20:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:20:43,735 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:20:43,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:20:43,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101366259] [2024-10-11 00:20:43,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101366259] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:20:43,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:20:43,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 00:20:43,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003535486] [2024-10-11 00:20:43,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:20:43,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 00:20:43,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:20:43,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 00:20:43,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:20:43,777 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:20:43,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:20:43,876 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2024-10-11 00:20:43,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 00:20:43,879 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-11 00:20:43,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:20:43,886 INFO L225 Difference]: With dead ends: 26 [2024-10-11 00:20:43,886 INFO L226 Difference]: Without dead ends: 12 [2024-10-11 00:20:43,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:20:43,895 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 00:20:43,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 00:20:43,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-10-11 00:20:43,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-11 00:20:43,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:20:43,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2024-10-11 00:20:43,918 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 9 [2024-10-11 00:20:43,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:20:43,918 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-10-11 00:20:43,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:20:43,919 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-10-11 00:20:43,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-11 00:20:43,919 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:20:43,919 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:20:43,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-11 00:20:44,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:20:44,121 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:20:44,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:20:44,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1631218176, now seen corresponding path program 1 times [2024-10-11 00:20:44,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:20:44,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687875246] [2024-10-11 00:20:44,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:20:44,123 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:20:44,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:20:44,124 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 00:20:44,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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