./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/filter2_set.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/filter2_set.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 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 19:06:34,461 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 19:06:34,515 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 19:06:34,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 19:06:34,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 19:06:34,538 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 19:06:34,540 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 19:06:34,540 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 19:06:34,540 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 19:06:34,543 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 19:06:34,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 19:06:34,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 19:06:34,544 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 19:06:34,544 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 19:06:34,544 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 19:06:34,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 19:06:34,545 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 19:06:34,545 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 19:06:34,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 19:06:34,546 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 19:06:34,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 19:06:34,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 19:06:34,547 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 19:06:34,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 19:06:34,548 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 19:06:34,548 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 19:06:34,548 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 19:06:34,548 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 19:06:34,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 19:06:34,549 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 19:06:34,549 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 19:06:34,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 19:06:34,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:06:34,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 19:06:34,550 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 19:06:34,550 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 19:06:34,550 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 19:06:34,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 19:06:34,550 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 19:06:34,550 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 19:06:34,551 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 19:06:34,551 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 19:06:34,551 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 [2024-11-19 19:06:34,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 19:06:34,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 19:06:34,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 19:06:34,746 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 19:06:34,746 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 19:06:34,747 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_set.c [2024-11-19 19:06:35,974 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 19:06:36,111 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 19:06:36,113 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_set.c [2024-11-19 19:06:36,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95442fdca/dc05483187d442709ad8161a06ea97f2/FLAGce0c29d5b [2024-11-19 19:06:36,133 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95442fdca/dc05483187d442709ad8161a06ea97f2 [2024-11-19 19:06:36,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 19:06:36,137 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 19:06:36,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 19:06:36,140 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 19:06:36,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 19:06:36,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54359094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36, skipping insertion in model container [2024-11-19 19:06:36,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,163 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 19:06:36,307 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/filter2_set.c[664,677] [2024-11-19 19:06:36,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:06:36,333 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 19:06:36,344 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/filter2_set.c[664,677] [2024-11-19 19:06:36,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:06:36,367 INFO L204 MainTranslator]: Completed translation [2024-11-19 19:06:36,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36 WrapperNode [2024-11-19 19:06:36,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 19:06:36,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 19:06:36,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 19:06:36,368 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 19:06:36,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,412 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2024-11-19 19:06:36,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 19:06:36,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 19:06:36,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 19:06:36,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 19:06:36,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,422 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,433 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 19:06:36,434 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 19:06:36,458 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 19:06:36,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 19:06:36,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 19:06:36,459 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36" (1/1) ... [2024-11-19 19:06:36,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:06:36,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 19:06:36,485 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 19:06:36,488 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 19:06:36,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 19:06:36,522 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 19:06:36,523 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 19:06:36,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 19:06:36,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 19:06:36,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 19:06:36,576 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 19:06:36,578 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 19:06:36,688 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-19 19:06:36,688 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 19:06:36,700 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 19:06:36,701 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 19:06:36,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:06:36 BoogieIcfgContainer [2024-11-19 19:06:36,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 19:06:36,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 19:06:36,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 19:06:36,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 19:06:36,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:06:36" (1/3) ... [2024-11-19 19:06:36,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0be6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:06:36, skipping insertion in model container [2024-11-19 19:06:36,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:36" (2/3) ... [2024-11-19 19:06:36,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0be6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:06:36, skipping insertion in model container [2024-11-19 19:06:36,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:06:36" (3/3) ... [2024-11-19 19:06:36,710 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2_set.c [2024-11-19 19:06:36,723 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 19:06:36,724 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 19:06:36,776 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 19:06:36,784 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;@677ab85c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 19:06:36,785 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 19:06:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 19:06:36,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-19 19:06:36,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:06:36,794 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:06:36,794 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:06:36,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:06:36,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1697849372, now seen corresponding path program 1 times [2024-11-19 19:06:36,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 19:06:36,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379775559] [2024-11-19 19:06:36,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:06:36,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 19:06:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:06:36,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 19:06:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:06:36,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 19:06:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:06:36,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 19:06:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:06:36,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 19:06:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:06:36,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 19:06:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:06:36,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-19 19:06:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:06:36,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-19 19:06:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:06:36,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 19:06:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:06:36,959 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-19 19:06:36,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 19:06:36,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379775559] [2024-11-19 19:06:36,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379775559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:06:36,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:06:36,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 19:06:36,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276074792] [2024-11-19 19:06:36,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:06:36,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 19:06:36,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 19:06:36,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 19:06:36,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:06:36,988 INFO L87 Difference]: Start difference. First operand has 27 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 19:06:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:06:37,003 INFO L93 Difference]: Finished difference Result 51 states and 78 transitions. [2024-11-19 19:06:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 19:06:37,004 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2024-11-19 19:06:37,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:06:37,008 INFO L225 Difference]: With dead ends: 51 [2024-11-19 19:06:37,009 INFO L226 Difference]: Without dead ends: 23 [2024-11-19 19:06:37,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 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 19:06:37,013 INFO L432 NwaCegarLoop]: 34 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, 34 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 19:06:37,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 19:06:37,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-19 19:06:37,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-19 19:06:37,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 19:06:37,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2024-11-19 19:06:37,042 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 48 [2024-11-19 19:06:37,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:06:37,042 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2024-11-19 19:06:37,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 19:06:37,043 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-11-19 19:06:37,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-19 19:06:37,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:06:37,044 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:06:37,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 19:06:37,045 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:06:37,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:06:37,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1417424168, now seen corresponding path program 1 times [2024-11-19 19:06:37,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 19:06:37,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405758844] [2024-11-19 19:06:37,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:06:37,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 19:06:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:06:37,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 19:06:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:06:37,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 19:06:37,178 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 19:06:37,180 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 19:06:37,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 19:06:37,184 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-19 19:06:37,218 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 19:06:37,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:06:37 BoogieIcfgContainer [2024-11-19 19:06:37,220 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 19:06:37,221 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 19:06:37,221 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 19:06:37,221 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 19:06:37,221 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:06:36" (3/4) ... [2024-11-19 19:06:37,223 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 19:06:37,224 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 19:06:37,225 INFO L158 Benchmark]: Toolchain (without parser) took 1087.16ms. Allocated memory was 155.2MB in the beginning and 220.2MB in the end (delta: 65.0MB). Free memory was 84.6MB in the beginning and 187.0MB in the end (delta: -102.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:06:37,225 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory was 106.3MB in the beginning and 106.1MB in the end (delta: 184.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:06:37,225 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.24ms. Allocated memory is still 155.2MB. Free memory was 84.5MB in the beginning and 71.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 19:06:37,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.37ms. Allocated memory is still 155.2MB. Free memory was 71.7MB in the beginning and 124.6MB in the end (delta: -53.0MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2024-11-19 19:06:37,226 INFO L158 Benchmark]: Boogie Preprocessor took 45.03ms. Allocated memory was 155.2MB in the beginning and 220.2MB in the end (delta: 65.0MB). Free memory was 124.6MB in the beginning and 192.4MB in the end (delta: -67.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:06:37,226 INFO L158 Benchmark]: RCFGBuilder took 242.86ms. Allocated memory is still 220.2MB. Free memory was 192.4MB in the beginning and 179.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 19:06:37,227 INFO L158 Benchmark]: TraceAbstraction took 516.70ms. Allocated memory is still 220.2MB. Free memory was 179.8MB in the beginning and 187.0MB in the end (delta: -7.2MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2024-11-19 19:06:37,227 INFO L158 Benchmark]: Witness Printer took 3.53ms. Allocated memory is still 220.2MB. Free memory is still 187.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:06:37,228 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory was 106.3MB in the beginning and 106.1MB in the end (delta: 184.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.24ms. Allocated memory is still 155.2MB. Free memory was 84.5MB in the beginning and 71.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.37ms. Allocated memory is still 155.2MB. Free memory was 71.7MB in the beginning and 124.6MB in the end (delta: -53.0MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.03ms. Allocated memory was 155.2MB in the beginning and 220.2MB in the end (delta: 65.0MB). Free memory was 124.6MB in the beginning and 192.4MB in the end (delta: -67.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 242.86ms. Allocated memory is still 220.2MB. Free memory was 192.4MB in the beginning and 179.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 516.70ms. Allocated memory is still 220.2MB. Free memory was 179.8MB in the beginning and 187.0MB in the end (delta: -7.2MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * Witness Printer took 3.53ms. Allocated memory is still 220.2MB. Free memory is still 187.0MB. 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: 17]: 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 57, overapproximation of to_real at line 43, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55. Possible FailurePath: [L22] double E, E0, E1, S0, S1, S; [L23] double A1, A2, A3, B1, B2; [L24] int i; [L26] A1 = __VERIFIER_nondet_double() [L27] A2 = __VERIFIER_nondet_double() [L28] A3 = __VERIFIER_nondet_double() [L29] B1 = __VERIFIER_nondet_double() [L30] B2 = __VERIFIER_nondet_double() [L31] CALL assume_abort_if_not(A1 >= 0.69 && A1 <= 0.71) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1] [L31] RET assume_abort_if_not(A1 >= 0.69 && A1 <= 0.71) [L32] CALL assume_abort_if_not(A2 >= -1.31 && A2 <= -1.29) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1] [L32] RET assume_abort_if_not(A2 >= -1.31 && A2 <= -1.29) [L33] CALL assume_abort_if_not(A3 >= 1.09 && A3 <= 1.11) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1] [L33] RET assume_abort_if_not(A3 >= 1.09 && A3 <= 1.11) [L34] CALL assume_abort_if_not(B1 >= 1.39 && B1 <= 1.41) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1] [L34] RET assume_abort_if_not(B1 >= 1.39 && B1 <= 1.41) [L35] CALL assume_abort_if_not(B2 >= -0.71 && B2 <= -0.69) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1] [L35] RET assume_abort_if_not(B2 >= -0.71 && B2 <= -0.69) [L38] E = __VERIFIER_nondet_double() [L39] E0 = __VERIFIER_nondet_double() [L40] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1] [L40] RET assume_abort_if_not(E >= 0. && E <= 1.) [L41] CALL assume_abort_if_not(E0 >= 0. && E0 <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1] [L41] RET assume_abort_if_not(E0 >= 0. && E0 <= 1.) [L43] S0 = 0 [L44] S = 0 [L46] i = 0 VAL [i=0] [L46] COND TRUE i <= 1000000 [L47] E1 = E0 [L48] E0 = E [L50] E = __VERIFIER_nondet_double() [L51] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1] [L51] RET assume_abort_if_not(E >= 0. && E <= 1.) VAL [E0=54, i=0] [L53] S1 = S0 [L54] S0 = S [L55] S = A1*E - E0*A2 + E1*A3 + S0*B1 + S1*B2 [L57] CALL __VERIFIER_assert(S >= -100. && S <= 100.) [L17] COND TRUE !(cond) [L17] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 8, 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, 34 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, 34 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 0.1s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 47 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 112/112 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 19:06:37,247 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/filter2_set.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 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 19:06:38,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 19:06:39,022 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-19 19:06:39,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 19:06:39,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 19:06:39,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 19:06:39,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 19:06:39,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 19:06:39,054 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 19:06:39,054 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 19:06:39,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 19:06:39,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 19:06:39,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 19:06:39,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 19:06:39,057 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 19:06:39,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 19:06:39,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 19:06:39,057 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 19:06:39,058 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 19:06:39,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 19:06:39,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 19:06:39,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 19:06:39,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 19:06:39,061 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 19:06:39,062 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-19 19:06:39,062 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 19:06:39,062 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-19 19:06:39,062 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 19:06:39,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 19:06:39,062 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 19:06:39,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 19:06:39,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 19:06:39,063 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 19:06:39,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 19:06:39,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:06:39,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 19:06:39,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 19:06:39,064 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 19:06:39,064 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-19 19:06:39,064 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-19 19:06:39,064 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 19:06:39,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 19:06:39,065 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 19:06:39,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 19:06:39,066 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 [2024-11-19 19:06:39,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 19:06:39,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 19:06:39,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 19:06:39,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 19:06:39,330 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 19:06:39,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_set.c [2024-11-19 19:06:40,602 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 19:06:40,742 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 19:06:40,742 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_set.c [2024-11-19 19:06:40,747 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b793b563b/cede774322114ad29c1b18c0c9974a5a/FLAG367fa7b94 [2024-11-19 19:06:40,757 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b793b563b/cede774322114ad29c1b18c0c9974a5a [2024-11-19 19:06:40,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 19:06:40,769 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 19:06:40,770 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 19:06:40,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 19:06:40,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 19:06:40,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:40,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f1d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40, skipping insertion in model container [2024-11-19 19:06:40,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:40,791 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 19:06:40,916 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/filter2_set.c[664,677] [2024-11-19 19:06:40,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:06:40,942 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 19:06:40,953 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/filter2_set.c[664,677] [2024-11-19 19:06:40,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:06:40,979 INFO L204 MainTranslator]: Completed translation [2024-11-19 19:06:40,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40 WrapperNode [2024-11-19 19:06:40,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 19:06:40,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 19:06:40,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 19:06:40,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 19:06:40,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:40,997 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:41,014 INFO L138 Inliner]: procedures = 15, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2024-11-19 19:06:41,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 19:06:41,016 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 19:06:41,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 19:06:41,017 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 19:06:41,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:41,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:41,026 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:41,039 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 19:06:41,040 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:41,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:41,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:41,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:41,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:41,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:41,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 19:06:41,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 19:06:41,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 19:06:41,051 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 19:06:41,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40" (1/1) ... [2024-11-19 19:06:41,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:06:41,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 19:06:41,076 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 19:06:41,081 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 19:06:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 19:06:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-19 19:06:41,116 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 19:06:41,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 19:06:41,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 19:06:41,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 19:06:41,177 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 19:06:41,179 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 19:06:45,627 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-19 19:06:45,628 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 19:06:45,636 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 19:06:45,636 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 19:06:45,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:06:45 BoogieIcfgContainer [2024-11-19 19:06:45,637 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 19:06:45,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 19:06:45,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 19:06:45,642 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 19:06:45,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:06:40" (1/3) ... [2024-11-19 19:06:45,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d90173b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:06:45, skipping insertion in model container [2024-11-19 19:06:45,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:40" (2/3) ... [2024-11-19 19:06:45,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d90173b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:06:45, skipping insertion in model container [2024-11-19 19:06:45,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:06:45" (3/3) ... [2024-11-19 19:06:45,645 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2_set.c [2024-11-19 19:06:45,659 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 19:06:45,660 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 19:06:45,704 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 19:06:45,709 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;@1e37a2b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 19:06:45,709 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 19:06:45,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 19:06:45,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-19 19:06:45,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:06:45,718 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:06:45,718 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:06:45,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:06:45,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1697849372, now seen corresponding path program 1 times [2024-11-19 19:06:45,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:06:45,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469299317] [2024-11-19 19:06:45,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:06:45,731 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 19:06:45,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:06:45,734 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 19:06:45,735 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 19:06:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:06:46,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 19:06:46,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:06:46,754 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-19 19:06:46,757 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 19:06:46,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 19:06:46,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469299317] [2024-11-19 19:06:46,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469299317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:06:46,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:06:46,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 19:06:46,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330450102] [2024-11-19 19:06:46,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:06:46,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 19:06:46,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 19:06:46,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 19:06:46,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:06:46,787 INFO L87 Difference]: Start difference. First operand has 27 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 19:06:46,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:06:46,803 INFO L93 Difference]: Finished difference Result 51 states and 78 transitions. [2024-11-19 19:06:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 19:06:46,805 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2024-11-19 19:06:46,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:06:46,811 INFO L225 Difference]: With dead ends: 51 [2024-11-19 19:06:46,811 INFO L226 Difference]: Without dead ends: 23 [2024-11-19 19:06:46,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 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 19:06:46,818 INFO L432 NwaCegarLoop]: 34 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, 34 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 19:06:46,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 19:06:46,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-19 19:06:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-19 19:06:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 19:06:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2024-11-19 19:06:46,859 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 48 [2024-11-19 19:06:46,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:06:46,860 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2024-11-19 19:06:46,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 19:06:46,861 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-11-19 19:06:46,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-19 19:06:46,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:06:46,863 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:06:46,894 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 19:06:47,064 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 19:06:47,064 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:06:47,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:06:47,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1417424168, now seen corresponding path program 1 times [2024-11-19 19:06:47,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:06:47,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253886199] [2024-11-19 19:06:47,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:06:47,066 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 19:06:47,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:06:47,068 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 19:06:47,069 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 19:06:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:06:53,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-19 19:06:53,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:07:17,948 WARN L286 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-19 19:07:26,309 WARN L286 SmtUtils]: Spent 8.36s 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) [2024-11-19 19:07:34,528 WARN L286 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-19 19:07:42,903 WARN L286 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-19 19:07:51,140 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 24 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-19 19:07:59,526 WARN L286 SmtUtils]: Spent 8.38s 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) [2024-11-19 19:08:04,664 WARN L286 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 24 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-19 19:08:12,883 WARN L286 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-19 19:08:21,256 WARN L286 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)