./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/zonotope_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/zonotope_loose.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 aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 11:41:23,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 11:41:23,158 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 11:41:23,165 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 11:41:23,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 11:41:23,191 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 11:41:23,192 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 11:41:23,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 11:41:23,193 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 11:41:23,194 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 11:41:23,194 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 11:41:23,194 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 11:41:23,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 11:41:23,195 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 11:41:23,195 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 11:41:23,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 11:41:23,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 11:41:23,195 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 11:41:23,195 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 11:41:23,195 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 11:41:23,195 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 11:41:23,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 11:41:23,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 11:41:23,196 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 11:41:23,196 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 11:41:23,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 11:41:23,196 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 11:41:23,196 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 11:41:23,196 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 11:41:23,196 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 11:41:23,196 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 11:41:23,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 11:41:23,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:41:23,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 11:41:23,197 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 11:41:23,197 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 11:41:23,197 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 11:41:23,198 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 11:41:23,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 11:41:23,198 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 11:41:23,198 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 11:41:23,198 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 11:41:23,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 11:41:23,198 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 [2025-03-03 11:41:23,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 11:41:23,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 11:41:23,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 11:41:23,456 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 11:41:23,457 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 11:41:23,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/zonotope_loose.c [2025-03-03 11:41:24,549 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae848e780/5ab13af44e5b4d2ba6eb3112178b62b6/FLAGedfb03c34 [2025-03-03 11:41:24,736 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 11:41:24,737 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c [2025-03-03 11:41:24,748 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae848e780/5ab13af44e5b4d2ba6eb3112178b62b6/FLAGedfb03c34 [2025-03-03 11:41:25,110 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae848e780/5ab13af44e5b4d2ba6eb3112178b62b6 [2025-03-03 11:41:25,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 11:41:25,113 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 11:41:25,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 11:41:25,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 11:41:25,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 11:41:25,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da76ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25, skipping insertion in model container [2025-03-03 11:41:25,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,127 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 11:41:25,218 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2025-03-03 11:41:25,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:41:25,229 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 11:41:25,235 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2025-03-03 11:41:25,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:41:25,246 INFO L204 MainTranslator]: Completed translation [2025-03-03 11:41:25,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25 WrapperNode [2025-03-03 11:41:25,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 11:41:25,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 11:41:25,247 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 11:41:25,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 11:41:25,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,267 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2025-03-03 11:41:25,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 11:41:25,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 11:41:25,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 11:41:25,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 11:41:25,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,275 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,285 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]. [2025-03-03 11:41:25,286 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,286 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,288 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,289 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,289 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 11:41:25,291 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 11:41:25,291 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 11:41:25,291 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 11:41:25,291 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25" (1/1) ... [2025-03-03 11:41:25,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:41:25,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 11:41:25,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 11:41:25,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 11:41:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 11:41:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 11:41:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 11:41:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 11:41:25,383 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 11:41:25,385 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 11:41:25,454 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-03-03 11:41:25,455 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 11:41:25,461 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 11:41:25,461 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 11:41:25,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:41:25 BoogieIcfgContainer [2025-03-03 11:41:25,463 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 11:41:25,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 11:41:25,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 11:41:25,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 11:41:25,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 11:41:25" (1/3) ... [2025-03-03 11:41:25,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359080d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:41:25, skipping insertion in model container [2025-03-03 11:41:25,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:25" (2/3) ... [2025-03-03 11:41:25,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359080d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:41:25, skipping insertion in model container [2025-03-03 11:41:25,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:41:25" (3/3) ... [2025-03-03 11:41:25,471 INFO L128 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2025-03-03 11:41:25,482 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 11:41:25,484 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG zonotope_loose.c that has 1 procedures, 13 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-03 11:41:25,527 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 11:41:25,538 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;@7d9f19ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 11:41:25,539 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 11:41:25,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:41:25,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-03 11:41:25,547 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:41:25,547 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:41:25,548 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:41:25,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:41:25,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1540969027, now seen corresponding path program 1 times [2025-03-03 11:41:25,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 11:41:25,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964198698] [2025-03-03 11:41:25,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:41:25,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 11:41:25,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-03 11:41:25,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-03 11:41:25,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:41:25,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:41:25,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 11:41:25,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 11:41:25,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964198698] [2025-03-03 11:41:25,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964198698] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:41:25,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:41:25,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 11:41:25,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381985302] [2025-03-03 11:41:25,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:41:25,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 11:41:25,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 11:41:25,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 11:41:25,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 11:41:25,683 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:41:25,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:41:25,690 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2025-03-03 11:41:25,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 11:41:25,692 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-03 11:41:25,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:41:25,695 INFO L225 Difference]: With dead ends: 23 [2025-03-03 11:41:25,695 INFO L226 Difference]: Without dead ends: 9 [2025-03-03 11:41:25,697 INFO L434 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 [2025-03-03 11:41:25,699 INFO L435 NwaCegarLoop]: 13 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, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 11:41:25,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 11:41:25,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-03-03 11:41:25,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2025-03-03 11:41:25,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:41:25,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2025-03-03 11:41:25,719 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2025-03-03 11:41:25,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:41:25,720 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2025-03-03 11:41:25,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:41:25,720 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2025-03-03 11:41:25,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-03 11:41:25,720 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:41:25,721 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:41:25,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 11:41:25,721 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:41:25,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:41:25,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1512339876, now seen corresponding path program 1 times [2025-03-03 11:41:25,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 11:41:25,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532747893] [2025-03-03 11:41:25,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:41:25,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 11:41:25,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-03 11:41:25,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-03 11:41:25,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:41:25,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 11:41:25,739 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 11:41:25,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-03 11:41:25,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-03 11:41:25,745 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:41:25,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 11:41:25,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 11:41:25,759 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 11:41:25,760 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 11:41:25,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 11:41:25,763 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-03 11:41:25,770 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 11:41:25,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 11:41:25 BoogieIcfgContainer [2025-03-03 11:41:25,773 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 11:41:25,773 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 11:41:25,774 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 11:41:25,774 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 11:41:25,774 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:41:25" (3/4) ... [2025-03-03 11:41:25,776 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 11:41:25,776 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 11:41:25,777 INFO L158 Benchmark]: Toolchain (without parser) took 664.25ms. Allocated memory is still 167.8MB. Free memory was 134.8MB in the beginning and 92.6MB in the end (delta: 42.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-03 11:41:25,777 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 192.9MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:41:25,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 133.39ms. Allocated memory is still 167.8MB. Free memory was 134.8MB in the beginning and 124.1MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 11:41:25,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.14ms. Allocated memory is still 167.8MB. Free memory was 124.1MB in the beginning and 122.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:41:25,778 INFO L158 Benchmark]: Boogie Preprocessor took 21.10ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 121.8MB in the end (delta: 885.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:41:25,778 INFO L158 Benchmark]: IcfgBuilder took 172.33ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 111.6MB in the end (delta: 10.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 11:41:25,778 INFO L158 Benchmark]: TraceAbstraction took 308.40ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 92.8MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 11:41:25,778 INFO L158 Benchmark]: Witness Printer took 3.02ms. Allocated memory is still 167.8MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:41:25,780 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 192.9MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 133.39ms. Allocated memory is still 167.8MB. Free memory was 134.8MB in the beginning and 124.1MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.14ms. Allocated memory is still 167.8MB. Free memory was 124.1MB in the beginning and 122.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.10ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 121.8MB in the end (delta: 885.8kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 172.33ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 111.6MB in the end (delta: 10.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 308.40ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 92.8MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.02ms. Allocated memory is still 167.8MB. Free memory is still 92.6MB. 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 someBinaryArithmeticDOUBLEoperation at line 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryDOUBLEComparisonOperation at line 21. Possible FailurePath: [L18] double x,y; [L20] x = __VERIFIER_nondet_double() [L21] CALL assume_abort_if_not(x >= 0. && x <= 10.) [L12] COND FALSE !(!cond) [L21] RET assume_abort_if_not(x >= 0. && x <= 10.) [L23] y = x*x - x [L24] COND TRUE y >= 0 [L24] y = x / 10. [L27] CALL __VERIFIER_assert(y >= 0. && y <= 105.) [L14] COND TRUE !(cond) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 0 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=13occurred 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, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-03 11:41:25,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/zonotope_loose.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 aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 11:41:27,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 11:41:27,677 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-03 11:41:27,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 11:41:27,682 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 11:41:27,699 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 11:41:27,700 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 11:41:27,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 11:41:27,701 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 11:41:27,701 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 11:41:27,702 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 11:41:27,702 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 11:41:27,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 11:41:27,702 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 11:41:27,702 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 11:41:27,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 11:41:27,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 11:41:27,703 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 11:41:27,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 11:41:27,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 11:41:27,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 11:41:27,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 11:41:27,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 11:41:27,703 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 11:41:27,703 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 11:41:27,704 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 11:41:27,704 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 11:41:27,704 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 11:41:27,704 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 11:41:27,704 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 11:41:27,704 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 11:41:27,705 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 11:41:27,705 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 11:41:27,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 11:41:27,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:41:27,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 11:41:27,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 11:41:27,705 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 11:41:27,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 11:41:27,705 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 11:41:27,705 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 11:41:27,706 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 11:41:27,706 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 11:41:27,706 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 11:41:27,706 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 11:41:27,706 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 [2025-03-03 11:41:27,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 11:41:27,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 11:41:27,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 11:41:27,991 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 11:41:27,992 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 11:41:27,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/zonotope_loose.c [2025-03-03 11:41:29,157 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67e877c99/8b5baa73e26a42abbf5ef469df07c76d/FLAG60bf32a37 [2025-03-03 11:41:29,351 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 11:41:29,352 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c [2025-03-03 11:41:29,357 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67e877c99/8b5baa73e26a42abbf5ef469df07c76d/FLAG60bf32a37 [2025-03-03 11:41:29,718 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67e877c99/8b5baa73e26a42abbf5ef469df07c76d [2025-03-03 11:41:29,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 11:41:29,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 11:41:29,721 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 11:41:29,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 11:41:29,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 11:41:29,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60211814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29, skipping insertion in model container [2025-03-03 11:41:29,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,734 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 11:41:29,834 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2025-03-03 11:41:29,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:41:29,858 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 11:41:29,868 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2025-03-03 11:41:29,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:41:29,885 INFO L204 MainTranslator]: Completed translation [2025-03-03 11:41:29,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29 WrapperNode [2025-03-03 11:41:29,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 11:41:29,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 11:41:29,888 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 11:41:29,888 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 11:41:29,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,912 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32 [2025-03-03 11:41:29,913 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 11:41:29,914 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 11:41:29,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 11:41:29,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 11:41:29,920 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,929 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]. [2025-03-03 11:41:29,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,940 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,946 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 11:41:29,949 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 11:41:29,950 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 11:41:29,950 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 11:41:29,951 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29" (1/1) ... [2025-03-03 11:41:29,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:41:29,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 11:41:29,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 11:41:29,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 11:41:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 11:41:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 11:41:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 11:41:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 11:41:30,042 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 11:41:30,043 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 11:41:35,178 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-03-03 11:41:35,178 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 11:41:35,184 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 11:41:35,184 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 11:41:35,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:41:35 BoogieIcfgContainer [2025-03-03 11:41:35,184 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 11:41:35,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 11:41:35,186 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 11:41:35,190 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 11:41:35,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 11:41:29" (1/3) ... [2025-03-03 11:41:35,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e73c360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:41:35, skipping insertion in model container [2025-03-03 11:41:35,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:41:29" (2/3) ... [2025-03-03 11:41:35,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e73c360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:41:35, skipping insertion in model container [2025-03-03 11:41:35,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:41:35" (3/3) ... [2025-03-03 11:41:35,192 INFO L128 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2025-03-03 11:41:35,202 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 11:41:35,204 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG zonotope_loose.c that has 1 procedures, 13 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-03 11:41:35,241 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 11:41:35,248 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;@36e4775d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 11:41:35,249 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 11:41:35,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:41:35,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-03 11:41:35,256 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:41:35,257 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:41:35,257 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:41:35,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:41:35,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1540969027, now seen corresponding path program 1 times [2025-03-03 11:41:35,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:41:35,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930147518] [2025-03-03 11:41:35,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:41:35,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 11:41:35,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:41:35,277 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 11:41:35,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-03 11:41:35,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-03 11:41:35,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-03 11:41:35,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:41:35,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:41:35,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 11:41:35,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:41:35,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 11:41:35,634 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:41:35,634 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 11:41:35,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930147518] [2025-03-03 11:41:35,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930147518] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:41:35,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:41:35,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 11:41:35,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118126086] [2025-03-03 11:41:35,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:41:35,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 11:41:35,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 11:41:35,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 11:41:35,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 11:41:35,654 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:41:35,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:41:35,661 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2025-03-03 11:41:35,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 11:41:35,662 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-03 11:41:35,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:41:35,666 INFO L225 Difference]: With dead ends: 23 [2025-03-03 11:41:35,667 INFO L226 Difference]: Without dead ends: 9 [2025-03-03 11:41:35,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 11:41:35,671 INFO L435 NwaCegarLoop]: 13 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, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 11:41:35,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 11:41:35,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-03-03 11:41:35,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2025-03-03 11:41:35,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:41:35,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2025-03-03 11:41:35,691 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2025-03-03 11:41:35,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:41:35,692 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2025-03-03 11:41:35,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:41:35,692 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2025-03-03 11:41:35,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-03 11:41:35,692 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:41:35,692 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:41:35,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-03-03 11:41:35,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 11:41:35,893 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:41:35,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:41:35,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1512339876, now seen corresponding path program 1 times [2025-03-03 11:41:35,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:41:35,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136628979] [2025-03-03 11:41:35,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:41:35,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 11:41:35,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:41:35,896 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 11:41:35,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-03 11:41:35,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-03 11:41:36,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-03 11:41:36,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:41:36,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:41:36,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-03 11:41:36,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:42:19,472 WARN L286 SmtUtils]: Spent 6.96s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-03 11:42:24,530 WARN L286 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-03 11:42:30,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 11:42:30,146 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:42:30,146 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 11:42:30,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136628979] [2025-03-03 11:42:30,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136628979] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:42:30,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:42:30,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 11:42:30,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608900346] [2025-03-03 11:42:30,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:42:30,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 11:42:30,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 11:42:30,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 11:42:30,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=25, Unknown=3, NotChecked=0, Total=42 [2025-03-03 11:42:30,147 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:42:33,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-03 11:42:35,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 11:42:37,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 11:42:40,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-03 11:42:41,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-03 11:42:43,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-03 11:42:45,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 11:42:49,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 11:42:53,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 11:42:57,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 11:42:59,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 11:42:59,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:42:59,573 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2025-03-03 11:42:59,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-03 11:42:59,573 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-03 11:42:59,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:42:59,574 INFO L225 Difference]: With dead ends: 13 [2025-03-03 11:42:59,574 INFO L226 Difference]: Without dead ends: 9 [2025-03-03 11:42:59,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 25.0s TimeCoverageRelationStatistics Valid=18, Invalid=35, Unknown=3, NotChecked=0, Total=56 [2025-03-03 11:42:59,574 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2025-03-03 11:42:59,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 9 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 2 Unknown, 0 Unchecked, 27.9s Time] [2025-03-03 11:42:59,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-03-03 11:42:59,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2025-03-03 11:42:59,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:42:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2025-03-03 11:42:59,575 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2025-03-03 11:42:59,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:42:59,576 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2025-03-03 11:42:59,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:42:59,576 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2025-03-03 11:42:59,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-03 11:42:59,576 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:42:59,576 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:42:59,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-03-03 11:42:59,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 11:42:59,777 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:42:59,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:42:59,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1512310085, now seen corresponding path program 1 times [2025-03-03 11:42:59,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:42:59,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257158009] [2025-03-03 11:42:59,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:42:59,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 11:42:59,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:42:59,779 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 11:42:59,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-03-03 11:42:59,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-03 11:43:00,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-03 11:43:00,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:43:00,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:43:00,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-03 11:43:00,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:43:06,346 WARN L286 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)