./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/zonotope_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/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 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 19:11:59,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 19:11:59,486 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 19:11:59,490 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 19:11:59,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 19:11:59,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 19:11:59,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 19:11:59,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 19:11:59,517 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 19:11:59,517 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 19:11:59,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 19:11:59,518 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 19:11:59,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 19:11:59,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 19:11:59,519 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 19:11:59,520 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 19:11:59,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 19:11:59,522 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 19:11:59,522 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 19:11:59,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 19:11:59,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 19:11:59,527 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 19:11:59,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 19:11:59,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 19:11:59,527 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 19:11:59,528 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 19:11:59,528 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 19:11:59,528 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 19:11:59,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 19:11:59,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 19:11:59,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 19:11:59,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 19:11:59,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:11:59,529 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 19:11:59,529 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 19:11:59,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 19:11:59,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 19:11:59,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 19:11:59,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 19:11:59,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 19:11:59,531 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 19:11:59,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 19:11:59,532 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 [2024-11-19 19:11:59,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 19:11:59,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 19:11:59,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 19:11:59,831 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 19:11:59,834 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 19:11:59,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c [2024-11-19 19:12:01,294 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 19:12:01,468 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 19:12:01,469 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c [2024-11-19 19:12:01,476 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92ab8b6cc/b4b11a7a55464ba08b2e15acd39eb850/FLAGbd5eaa3d1 [2024-11-19 19:12:01,865 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92ab8b6cc/b4b11a7a55464ba08b2e15acd39eb850 [2024-11-19 19:12:01,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 19:12:01,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 19:12:01,870 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 19:12:01,870 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 19:12:01,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 19:12:01,875 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:12:01" (1/1) ... [2024-11-19 19:12:01,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8d0526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:01, skipping insertion in model container [2024-11-19 19:12:01,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:12:01" (1/1) ... [2024-11-19 19:12:01,893 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 19:12:02,066 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] [2024-11-19 19:12:02,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:12:02,096 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 19:12:02,134 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] [2024-11-19 19:12:02,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:12:02,153 INFO L204 MainTranslator]: Completed translation [2024-11-19 19:12:02,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02 WrapperNode [2024-11-19 19:12:02,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 19:12:02,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 19:12:02,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 19:12:02,155 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 19:12:02,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02" (1/1) ... [2024-11-19 19:12:02,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02" (1/1) ... [2024-11-19 19:12:02,182 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2024-11-19 19:12:02,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 19:12:02,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 19:12:02,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 19:12:02,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 19:12:02,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02" (1/1) ... [2024-11-19 19:12:02,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02" (1/1) ... [2024-11-19 19:12:02,193 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02" (1/1) ... [2024-11-19 19:12:02,202 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 19:12:02,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02" (1/1) ... [2024-11-19 19:12:02,203 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02" (1/1) ... [2024-11-19 19:12:02,208 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02" (1/1) ... [2024-11-19 19:12:02,213 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02" (1/1) ... [2024-11-19 19:12:02,214 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02" (1/1) ... [2024-11-19 19:12:02,214 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02" (1/1) ... [2024-11-19 19:12:02,215 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 19:12:02,216 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 19:12:02,216 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 19:12:02,216 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 19:12:02,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02" (1/1) ... [2024-11-19 19:12:02,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:12:02,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 19:12:02,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 19:12:02,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 19:12:02,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 19:12:02,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 19:12:02,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 19:12:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 19:12:02,373 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 19:12:02,375 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 19:12:02,500 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-19 19:12:02,500 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 19:12:02,520 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 19:12:02,521 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 19:12:02,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:12:02 BoogieIcfgContainer [2024-11-19 19:12:02,521 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 19:12:02,524 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 19:12:02,524 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 19:12:02,527 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 19:12:02,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:12:01" (1/3) ... [2024-11-19 19:12:02,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b48be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:12:02, skipping insertion in model container [2024-11-19 19:12:02,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:02" (2/3) ... [2024-11-19 19:12:02,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b48be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:12:02, skipping insertion in model container [2024-11-19 19:12:02,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:12:02" (3/3) ... [2024-11-19 19:12:02,531 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2024-11-19 19:12:02,551 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 19:12:02,551 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 19:12:02,621 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 19:12:02,629 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;@5da7c550, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 19:12:02,630 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 19:12:02,634 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) [2024-11-19 19:12:02,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 19:12:02,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:12:02,641 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:12:02,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:12:02,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:12:02,650 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2024-11-19 19:12:02,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 19:12:02,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558853110] [2024-11-19 19:12:02,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:12:02,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 19:12:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:12:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:12:02,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 19:12:02,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558853110] [2024-11-19 19:12:02,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558853110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:12:02,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:12:02,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 19:12:02,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302974890] [2024-11-19 19:12:02,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:12:02,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 19:12:02,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 19:12:02,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 19:12:02,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:12:02,845 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) [2024-11-19 19:12:02,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:12:02,854 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2024-11-19 19:12:02,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 19:12:02,857 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 [2024-11-19 19:12:02,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:12:02,862 INFO L225 Difference]: With dead ends: 23 [2024-11-19 19:12:02,862 INFO L226 Difference]: Without dead ends: 9 [2024-11-19 19:12:02,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:12:02,868 INFO L432 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 [2024-11-19 19:12:02,871 INFO L433 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] [2024-11-19 19:12:02,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-19 19:12:02,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-19 19:12:02,897 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) [2024-11-19 19:12:02,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-19 19:12:02,898 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2024-11-19 19:12:02,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:12:02,899 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-19 19:12:02,899 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) [2024-11-19 19:12:02,899 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-19 19:12:02,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 19:12:02,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:12:02,900 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:12:02,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 19:12:02,901 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:12:02,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:12:02,902 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2024-11-19 19:12:02,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 19:12:02,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692708221] [2024-11-19 19:12:02,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:12:02,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 19:12:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:12:02,930 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 19:12:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:12:02,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 19:12:02,971 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 19:12:02,974 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 19:12:02,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 19:12:02,979 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-19 19:12:02,994 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 19:12:03,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:12:03 BoogieIcfgContainer [2024-11-19 19:12:03,000 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 19:12:03,001 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 19:12:03,001 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 19:12:03,001 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 19:12:03,003 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:12:02" (3/4) ... [2024-11-19 19:12:03,007 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 19:12:03,008 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 19:12:03,009 INFO L158 Benchmark]: Toolchain (without parser) took 1140.08ms. Allocated memory is still 169.9MB. Free memory was 106.1MB in the beginning and 101.7MB in the end (delta: 4.4MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2024-11-19 19:12:03,009 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:12:03,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.42ms. Allocated memory is still 169.9MB. Free memory was 106.1MB in the beginning and 138.6MB in the end (delta: -32.5MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-11-19 19:12:03,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.10ms. Allocated memory is still 169.9MB. Free memory was 138.0MB in the beginning and 137.1MB in the end (delta: 868.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:12:03,011 INFO L158 Benchmark]: Boogie Preprocessor took 31.93ms. Allocated memory is still 169.9MB. Free memory was 136.5MB in the beginning and 135.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:12:03,013 INFO L158 Benchmark]: RCFGBuilder took 305.34ms. Allocated memory is still 169.9MB. Free memory was 135.3MB in the beginning and 125.4MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-19 19:12:03,013 INFO L158 Benchmark]: TraceAbstraction took 476.47ms. Allocated memory is still 169.9MB. Free memory was 124.8MB in the beginning and 101.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-19 19:12:03,014 INFO L158 Benchmark]: Witness Printer took 7.35ms. Allocated memory is still 169.9MB. Free memory is still 101.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:12:03,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.42ms. Allocated memory is still 169.9MB. Free memory was 106.1MB in the beginning and 138.6MB in the end (delta: -32.5MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.10ms. Allocated memory is still 169.9MB. Free memory was 138.0MB in the beginning and 137.1MB in the end (delta: 868.9kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.93ms. Allocated memory is still 169.9MB. Free memory was 136.5MB in the beginning and 135.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 305.34ms. Allocated memory is still 169.9MB. Free memory was 135.3MB in the beginning and 125.4MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 476.47ms. Allocated memory is still 169.9MB. Free memory was 124.8MB in the beginning and 101.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 7.35ms. Allocated memory is still 169.9MB. Free memory is still 101.7MB. 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 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 24. 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: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-19 19:12:03,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/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 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 19:12:05,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 19:12:05,385 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-19 19:12:05,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 19:12:05,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 19:12:05,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 19:12:05,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 19:12:05,428 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 19:12:05,429 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 19:12:05,430 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 19:12:05,430 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 19:12:05,431 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 19:12:05,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 19:12:05,432 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 19:12:05,433 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 19:12:05,434 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 19:12:05,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 19:12:05,434 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 19:12:05,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 19:12:05,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 19:12:05,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 19:12:05,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 19:12:05,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 19:12:05,440 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 19:12:05,440 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-19 19:12:05,440 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 19:12:05,440 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-19 19:12:05,441 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 19:12:05,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 19:12:05,441 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 19:12:05,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 19:12:05,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 19:12:05,442 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 19:12:05,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 19:12:05,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:12:05,442 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 19:12:05,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 19:12:05,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 19:12:05,443 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-19 19:12:05,443 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-19 19:12:05,444 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 19:12:05,445 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 19:12:05,446 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 19:12:05,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 19:12:05,446 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 [2024-11-19 19:12:05,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 19:12:05,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 19:12:05,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 19:12:05,816 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 19:12:05,817 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 19:12:05,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c [2024-11-19 19:12:07,328 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 19:12:07,529 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 19:12:07,530 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c [2024-11-19 19:12:07,536 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9b1be1da/c4fccba3633f4b78ba4a73aa129648fb/FLAGbfc332c8c [2024-11-19 19:12:07,548 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9b1be1da/c4fccba3633f4b78ba4a73aa129648fb [2024-11-19 19:12:07,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 19:12:07,552 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 19:12:07,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 19:12:07,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 19:12:07,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 19:12:07,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c44f58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07, skipping insertion in model container [2024-11-19 19:12:07,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,580 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 19:12:07,749 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] [2024-11-19 19:12:07,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:12:07,781 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 19:12:07,796 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] [2024-11-19 19:12:07,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:12:07,821 INFO L204 MainTranslator]: Completed translation [2024-11-19 19:12:07,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07 WrapperNode [2024-11-19 19:12:07,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 19:12:07,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 19:12:07,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 19:12:07,823 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 19:12:07,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,856 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32 [2024-11-19 19:12:07,856 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 19:12:07,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 19:12:07,857 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 19:12:07,857 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 19:12:07,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,896 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 19:12:07,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,896 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,920 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 19:12:07,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 19:12:07,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 19:12:07,923 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 19:12:07,924 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07" (1/1) ... [2024-11-19 19:12:07,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:12:07,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 19:12:07,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 19:12:07,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 19:12:08,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 19:12:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-19 19:12:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 19:12:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 19:12:08,082 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 19:12:08,087 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 19:12:16,490 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-19 19:12:16,490 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 19:12:16,503 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 19:12:16,503 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 19:12:16,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:12:16 BoogieIcfgContainer [2024-11-19 19:12:16,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 19:12:16,507 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 19:12:16,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 19:12:16,511 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 19:12:16,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:12:07" (1/3) ... [2024-11-19 19:12:16,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31be1a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:12:16, skipping insertion in model container [2024-11-19 19:12:16,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:07" (2/3) ... [2024-11-19 19:12:16,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31be1a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:12:16, skipping insertion in model container [2024-11-19 19:12:16,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:12:16" (3/3) ... [2024-11-19 19:12:16,515 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2024-11-19 19:12:16,529 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 19:12:16,529 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 19:12:16,580 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 19:12:16,586 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;@3cb74018, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 19:12:16,587 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 19:12:16,591 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) [2024-11-19 19:12:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 19:12:16,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:12:16,597 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:12:16,598 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:12:16,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:12:16,603 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2024-11-19 19:12:16,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:12:16,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648725045] [2024-11-19 19:12:16,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:12:16,613 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-19 19:12:16,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:12:16,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-19 19:12:16,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-19 19:12:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:12:16,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 19:12:16,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:12:16,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:12:16,996 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 19:12:16,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 19:12:16,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648725045] [2024-11-19 19:12:16,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648725045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:12:16,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:12:16,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 19:12:16,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492593775] [2024-11-19 19:12:16,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:12:17,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 19:12:17,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 19:12:17,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 19:12:17,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:12:17,028 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) [2024-11-19 19:12:17,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:12:17,041 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2024-11-19 19:12:17,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 19:12:17,043 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 [2024-11-19 19:12:17,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:12:17,050 INFO L225 Difference]: With dead ends: 23 [2024-11-19 19:12:17,050 INFO L226 Difference]: Without dead ends: 9 [2024-11-19 19:12:17,053 INFO L431 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 [2024-11-19 19:12:17,058 INFO L432 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 [2024-11-19 19:12:17,061 INFO L433 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] [2024-11-19 19:12:17,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-19 19:12:17,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-19 19:12:17,094 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) [2024-11-19 19:12:17,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-19 19:12:17,095 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2024-11-19 19:12:17,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:12:17,096 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-19 19:12:17,096 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) [2024-11-19 19:12:17,096 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-19 19:12:17,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 19:12:17,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:12:17,097 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:12:17,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-19 19:12:17,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-19 19:12:17,298 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:12:17,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:12:17,299 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2024-11-19 19:12:17,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:12:17,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832300246] [2024-11-19 19:12:17,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:12:17,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-19 19:12:17,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:12:17,301 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-19 19:12:17,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-19 19:12:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:12:17,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 19:12:17,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:13:03,980 WARN L286 SmtUtils]: Spent 7.83s 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) [2024-11-19 19:13:30,393 WARN L286 SmtUtils]: Spent 17.78s on a formula simplification. DAG size of input: 19 DAG size of output: 16 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-19 19:13:39,579 WARN L286 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)