./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 6ce33b6f81168af3d96568d671c639f1b150a10746ef41348bbd6ceb49bdfdbb --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 17:27:59,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:27:59,682 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 17:27:59,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:27:59,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:27:59,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:27:59,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:27:59,722 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:27:59,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:27:59,724 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:27:59,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:27:59,725 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:27:59,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:27:59,726 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:27:59,727 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:27:59,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:27:59,730 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:27:59,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:27:59,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:27:59,730 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:27:59,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:27:59,731 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:27:59,731 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:27:59,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:27:59,733 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:27:59,733 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:27:59,733 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:27:59,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:27:59,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:27:59,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:27:59,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:27:59,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:27:59,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:27:59,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:27:59,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:27:59,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:27:59,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:27:59,736 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:27:59,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:27:59,737 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ce33b6f81168af3d96568d671c639f1b150a10746ef41348bbd6ceb49bdfdbb [2024-11-08 17:28:00,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:28:00,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:28:00,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:28:00,055 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:28:00,057 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:28:00,058 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2024-11-08 17:28:01,512 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:28:01,747 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:28:01,748 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2024-11-08 17:28:01,759 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d31c81fbf/11be553a7e7642c1b0e93e657e7c331e/FLAGd99d2476a [2024-11-08 17:28:02,098 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d31c81fbf/11be553a7e7642c1b0e93e657e7c331e [2024-11-08 17:28:02,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:28:02,101 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:28:02,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:28:02,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:28:02,108 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:28:02,109 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5551830a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02, skipping insertion in model container [2024-11-08 17:28:02,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,147 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:28:02,341 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/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1251,1264] [2024-11-08 17:28:02,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:28:02,481 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:28:02,491 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/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1251,1264] [2024-11-08 17:28:02,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:28:02,585 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:28:02,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02 WrapperNode [2024-11-08 17:28:02,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:28:02,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:28:02,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:28:02,592 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:28:02,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,628 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,718 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 759 [2024-11-08 17:28:02,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:28:02,719 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:28:02,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:28:02,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:28:02,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,753 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,821 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]. [2024-11-08 17:28:02,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,822 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,855 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,894 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:28:02,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:28:02,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:28:02,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:28:02,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02" (1/1) ... [2024-11-08 17:28:02,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:28:02,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 17:28:02,956 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) [2024-11-08 17:28:02,962 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 [2024-11-08 17:28:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:28:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:28:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:28:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:28:03,253 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:28:03,255 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:28:04,309 INFO L? ?]: Removed 427 outVars from TransFormulas that were not future-live. [2024-11-08 17:28:04,309 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:28:04,325 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:28:04,325 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:28:04,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:28:04 BoogieIcfgContainer [2024-11-08 17:28:04,326 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:28:04,329 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:28:04,330 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:28:04,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:28:04,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:28:02" (1/3) ... [2024-11-08 17:28:04,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c377c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:28:04, skipping insertion in model container [2024-11-08 17:28:04,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:02" (2/3) ... [2024-11-08 17:28:04,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c377c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:28:04, skipping insertion in model container [2024-11-08 17:28:04,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:28:04" (3/3) ... [2024-11-08 17:28:04,335 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Huffman_enc.c [2024-11-08 17:28:04,351 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:28:04,352 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:28:04,426 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:28:04,433 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;@654d8f60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:28:04,434 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:28:04,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 164 states have (on average 1.4939024390243902) internal successors, (245), 165 states have internal predecessors, (245), 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) [2024-11-08 17:28:04,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 17:28:04,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:28:04,446 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:28:04,447 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:28:04,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:28:04,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1364142940, now seen corresponding path program 1 times [2024-11-08 17:28:04,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:28:04,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144693153] [2024-11-08 17:28:04,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:28:04,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:28:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:28:05,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:28:05,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:28:05,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144693153] [2024-11-08 17:28:05,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144693153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:28:05,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:28:05,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:28:05,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417428586] [2024-11-08 17:28:05,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:28:05,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:28:05,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:28:05,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:28:05,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:28:05,081 INFO L87 Difference]: Start difference. First operand has 166 states, 164 states have (on average 1.4939024390243902) internal successors, (245), 165 states have internal predecessors, (245), 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 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-08 17:28:05,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:28:05,151 INFO L93 Difference]: Finished difference Result 325 states and 483 transitions. [2024-11-08 17:28:05,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:28:05,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-11-08 17:28:05,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:28:05,165 INFO L225 Difference]: With dead ends: 325 [2024-11-08 17:28:05,165 INFO L226 Difference]: Without dead ends: 165 [2024-11-08 17:28:05,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:28:05,172 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:28:05,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 711 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:28:05,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-08 17:28:05,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-11-08 17:28:05,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 1.4817073170731707) internal successors, (243), 164 states have internal predecessors, (243), 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) [2024-11-08 17:28:05,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 243 transitions. [2024-11-08 17:28:05,218 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 243 transitions. Word has length 19 [2024-11-08 17:28:05,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:28:05,218 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 243 transitions. [2024-11-08 17:28:05,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-08 17:28:05,219 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 243 transitions. [2024-11-08 17:28:05,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 17:28:05,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:28:05,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:28:05,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:28:05,220 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:28:05,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:28:05,221 INFO L85 PathProgramCache]: Analyzing trace with hash 662937064, now seen corresponding path program 1 times [2024-11-08 17:28:05,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:28:05,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965452978] [2024-11-08 17:28:05,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:28:05,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:28:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:28:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:28:05,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:28:05,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965452978] [2024-11-08 17:28:05,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965452978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:28:05,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:28:05,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:28:05,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740948934] [2024-11-08 17:28:05,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:28:05,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:28:05,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:28:05,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:28:05,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:28:05,374 INFO L87 Difference]: Start difference. First operand 165 states and 243 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-08 17:28:05,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:28:05,419 INFO L93 Difference]: Finished difference Result 326 states and 481 transitions. [2024-11-08 17:28:05,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:28:05,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2024-11-08 17:28:05,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:28:05,422 INFO L225 Difference]: With dead ends: 326 [2024-11-08 17:28:05,422 INFO L226 Difference]: Without dead ends: 167 [2024-11-08 17:28:05,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:28:05,427 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:28:05,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 707 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:28:05,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-08 17:28:05,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-08 17:28:05,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.4759036144578312) internal successors, (245), 166 states have internal predecessors, (245), 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) [2024-11-08 17:28:05,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 245 transitions. [2024-11-08 17:28:05,447 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 245 transitions. Word has length 20 [2024-11-08 17:28:05,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:28:05,447 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 245 transitions. [2024-11-08 17:28:05,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-08 17:28:05,448 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 245 transitions. [2024-11-08 17:28:05,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 17:28:05,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:28:05,448 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:28:05,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:28:05,449 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:28:05,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:28:05,449 INFO L85 PathProgramCache]: Analyzing trace with hash -2021753347, now seen corresponding path program 1 times [2024-11-08 17:28:05,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:28:05,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119140573] [2024-11-08 17:28:05,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:28:05,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:28:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:28:06,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:28:06,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:28:06,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119140573] [2024-11-08 17:28:06,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119140573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:28:06,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:28:06,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:28:06,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246470596] [2024-11-08 17:28:06,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:28:06,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:28:06,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:28:06,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:28:06,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:28:06,052 INFO L87 Difference]: Start difference. First operand 167 states and 245 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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) [2024-11-08 17:28:06,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:28:06,122 INFO L93 Difference]: Finished difference Result 336 states and 494 transitions. [2024-11-08 17:28:06,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:28:06,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2024-11-08 17:28:06,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:28:06,127 INFO L225 Difference]: With dead ends: 336 [2024-11-08 17:28:06,130 INFO L226 Difference]: Without dead ends: 175 [2024-11-08 17:28:06,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:28:06,131 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 249 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:28:06,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 935 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:28:06,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-08 17:28:06,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 174. [2024-11-08 17:28:06,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.4682080924855492) internal successors, (254), 173 states have internal predecessors, (254), 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) [2024-11-08 17:28:06,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 254 transitions. [2024-11-08 17:28:06,146 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 254 transitions. Word has length 21 [2024-11-08 17:28:06,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:28:06,146 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 254 transitions. [2024-11-08 17:28:06,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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) [2024-11-08 17:28:06,149 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 254 transitions. [2024-11-08 17:28:06,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-08 17:28:06,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:28:06,151 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:28:06,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:28:06,152 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:28:06,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:28:06,152 INFO L85 PathProgramCache]: Analyzing trace with hash 578776285, now seen corresponding path program 1 times [2024-11-08 17:28:06,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:28:06,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15857291] [2024-11-08 17:28:06,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:28:06,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:28:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:28:06,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:28:06,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:28:06,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15857291] [2024-11-08 17:28:06,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15857291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:28:06,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:28:06,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:28:06,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812516810] [2024-11-08 17:28:06,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:28:06,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:28:06,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:28:06,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:28:06,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:28:06,298 INFO L87 Difference]: Start difference. First operand 174 states and 254 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2024-11-08 17:28:06,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:28:06,363 INFO L93 Difference]: Finished difference Result 494 states and 721 transitions. [2024-11-08 17:28:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:28:06,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2024-11-08 17:28:06,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:28:06,365 INFO L225 Difference]: With dead ends: 494 [2024-11-08 17:28:06,366 INFO L226 Difference]: Without dead ends: 326 [2024-11-08 17:28:06,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:28:06,371 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 212 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:28:06,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 929 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:28:06,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-08 17:28:06,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 181. [2024-11-08 17:28:06,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.461111111111111) internal successors, (263), 180 states have internal predecessors, (263), 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) [2024-11-08 17:28:06,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 263 transitions. [2024-11-08 17:28:06,379 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 263 transitions. Word has length 22 [2024-11-08 17:28:06,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:28:06,380 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 263 transitions. [2024-11-08 17:28:06,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2024-11-08 17:28:06,380 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 263 transitions. [2024-11-08 17:28:06,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-08 17:28:06,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:28:06,381 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:28:06,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:28:06,381 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:28:06,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:28:06,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1145287578, now seen corresponding path program 1 times [2024-11-08 17:28:06,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:28:06,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688376939] [2024-11-08 17:28:06,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:28:06,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:28:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:28:06,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:28:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:28:06,481 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:28:06,482 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:28:06,483 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:28:06,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:28:06,489 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 17:28:06,546 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:28:06,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:28:06 BoogieIcfgContainer [2024-11-08 17:28:06,549 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:28:06,550 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:28:06,550 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:28:06,550 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:28:06,550 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:28:04" (3/4) ... [2024-11-08 17:28:06,553 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:28:06,554 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:28:06,554 INFO L158 Benchmark]: Toolchain (without parser) took 4453.09ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 94.3MB in the beginning and 116.7MB in the end (delta: -22.4MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2024-11-08 17:28:06,555 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:28:06,555 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.10ms. Allocated memory is still 140.5MB. Free memory was 94.3MB in the beginning and 69.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-08 17:28:06,555 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.33ms. Allocated memory is still 140.5MB. Free memory was 69.1MB in the beginning and 53.3MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 17:28:06,556 INFO L158 Benchmark]: Boogie Preprocessor took 193.12ms. Allocated memory is still 140.5MB. Free memory was 53.3MB in the beginning and 43.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 17:28:06,556 INFO L158 Benchmark]: RCFGBuilder took 1411.98ms. Allocated memory is still 140.5MB. Free memory was 43.8MB in the beginning and 49.9MB in the end (delta: -6.0MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2024-11-08 17:28:06,556 INFO L158 Benchmark]: TraceAbstraction took 2220.34ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 49.1MB in the beginning and 116.7MB in the end (delta: -67.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:28:06,556 INFO L158 Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 199.2MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:28:06,558 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.10ms. Allocated memory is still 140.5MB. Free memory was 94.3MB in the beginning and 69.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.33ms. Allocated memory is still 140.5MB. Free memory was 69.1MB in the beginning and 53.3MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 193.12ms. Allocated memory is still 140.5MB. Free memory was 53.3MB in the beginning and 43.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1411.98ms. Allocated memory is still 140.5MB. Free memory was 43.8MB in the beginning and 49.9MB in the end (delta: -6.0MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2220.34ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 49.1MB in the beginning and 116.7MB in the end (delta: -67.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.21ms. Allocated memory is still 199.2MB. Free memory is still 116.7MB. 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: 21]: 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 bitwiseOr at line 141. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 5); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (5 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L32] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 10); [L33] const SORT_5 msb_SORT_5 = (SORT_5)1 << (10 - 1); [L35] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L36] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L38] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 8); [L39] const SORT_19 msb_SORT_19 = (SORT_19)1 << (8 - 1); [L41] const SORT_26 mask_SORT_26 = (SORT_26)-1 >> (sizeof(SORT_26) * 8 - 9); [L42] const SORT_26 msb_SORT_26 = (SORT_26)1 << (9 - 1); [L44] const SORT_33 mask_SORT_33 = (SORT_33)-1 >> (sizeof(SORT_33) * 8 - 27); [L45] const SORT_33 msb_SORT_33 = (SORT_33)1 << (27 - 1); [L47] const SORT_7 var_9 = 0; [L48] const SORT_3 var_15 = 1; [L49] const SORT_3 var_25 = 0; [L50] const SORT_5 var_29 = 0; [L51] const SORT_5 var_30 = 908; [L52] const SORT_7 var_31 = 32; [L53] const SORT_7 var_32 = 65; [L54] const SORT_33 var_34 = 0; [L55] const SORT_7 var_38 = 26; [L56] const SORT_7 var_43 = 74; [L57] const SORT_5 var_46 = 652; [L58] const SORT_7 var_48 = 90; [L59] const SORT_5 var_51 = 460; [L60] const SORT_7 var_53 = 88; [L61] const SORT_5 var_56 = 332; [L62] const SORT_7 var_58 = 75; [L63] const SORT_5 var_61 = 268; [L64] const SORT_7 var_63 = 81; [L65] const SORT_5 var_66 = 215; [L66] const SORT_7 var_68 = 86; [L67] const SORT_5 var_71 = 151; [L68] const SORT_7 var_73 = 66; [L69] const SORT_5 var_76 = 119; [L70] const SORT_7 var_78 = 77; [L71] const SORT_5 var_81 = 118; [L72] const SORT_7 var_83 = 89; [L73] const SORT_5 var_86 = 86; [L74] const SORT_7 var_88 = 71; [L75] const SORT_5 var_91 = 108; [L76] const SORT_7 var_93 = 87; [L77] const SORT_5 var_96 = 39; [L78] const SORT_7 var_98 = 68; [L79] const SORT_5 var_101 = 38; [L80] const SORT_7 var_103 = 72; [L81] const SORT_5 var_106 = 60; [L82] const SORT_7 var_108 = 76; [L83] const SORT_5 var_111 = 56; [L84] const SORT_7 var_113 = 67; [L85] const SORT_5 var_116 = 40; [L86] const SORT_7 var_118 = 70; [L87] const SORT_5 var_121 = 48; [L88] const SORT_7 var_123 = 80; [L89] const SORT_5 var_126 = 32; [L90] const SORT_7 var_128 = 85; [L91] const SORT_5 var_131 = 31; [L92] const SORT_7 var_133 = 84; [L93] const SORT_5 var_136 = 29; [L94] const SORT_7 var_138 = 78; [L95] const SORT_5 var_141 = 21; [L96] const SORT_7 var_143 = 82; [L97] const SORT_5 var_146 = 25; [L98] const SORT_7 var_148 = 79; [L99] const SORT_5 var_151 = 17; [L100] const SORT_7 var_153 = 73; [L101] const SORT_5 var_156 = 30; [L102] const SORT_5 var_160 = 20; [L103] const SORT_7 var_162 = 83; [L104] const SORT_5 var_165 = 11; [L105] const SORT_5 var_169 = 10; [L106] const SORT_7 var_171 = 69; [L107] const SORT_7 var_176 = 1; [L109] SORT_1 input_2; [L110] SORT_3 input_4; [L111] SORT_19 input_20; [L112] SORT_3 input_22; [L114] EXPR __VERIFIER_nondet_ushort() & mask_SORT_5 VAL [mask_SORT_19=255, mask_SORT_1=31, mask_SORT_26=511, mask_SORT_3=1, mask_SORT_5=1023, var_101=38, var_103=72, var_106=60, var_108=76, var_111=56, var_113=67, var_116=40, var_118=70, var_121=48, var_123=80, var_126=32, var_128=85, var_131=31, var_133=84, var_136=29, var_138=78, var_141=21, var_143=82, var_146=25, var_148=79, var_151=17, var_153=73, var_156=30, var_15=1, var_160=20, var_162=83, var_165=11, var_169=10, var_171=69, var_176=1, var_25=0, var_29=0, var_30=908, var_31=32, var_32=65, var_34=0, var_38=26, var_43=74, var_46=652, var_48=90, var_51=460, var_53=88, var_56=332, var_58=75, var_61=268, var_63=81, var_66=215, var_68=86, var_71=151, var_73=66, var_76=119, var_78=77, var_81=118, var_83=89, var_86=86, var_88=71, var_91=108, var_93=87, var_96=39, var_98=68, var_9=0] [L114] SORT_5 state_6 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L118] input_2 = __VERIFIER_nondet_uchar() [L119] EXPR input_2 & mask_SORT_1 VAL [mask_SORT_19=255, mask_SORT_1=31, mask_SORT_26=511, mask_SORT_3=1, mask_SORT_5=1023, state_6=0, var_101=38, var_103=72, var_106=60, var_108=76, var_111=56, var_113=67, var_116=40, var_118=70, var_121=48, var_123=80, var_126=32, var_128=85, var_131=31, var_133=84, var_136=29, var_138=78, var_141=21, var_143=82, var_146=25, var_148=79, var_151=17, var_153=73, var_156=30, var_15=1, var_160=20, var_162=83, var_165=11, var_169=10, var_171=69, var_176=1, var_25=0, var_29=0, var_30=908, var_31=32, var_32=65, var_34=0, var_38=26, var_43=74, var_46=652, var_48=90, var_51=460, var_53=88, var_56=332, var_58=75, var_61=268, var_63=81, var_66=215, var_68=86, var_71=151, var_73=66, var_76=119, var_78=77, var_81=118, var_83=89, var_86=86, var_88=71, var_91=108, var_93=87, var_96=39, var_98=68, var_9=0] [L119] input_2 = input_2 & mask_SORT_1 [L120] input_4 = __VERIFIER_nondet_uchar() [L121] input_20 = __VERIFIER_nondet_uchar() [L122] input_22 = __VERIFIER_nondet_uchar() [L125] SORT_5 var_8_arg_0 = state_6; VAL [input_2=0, mask_SORT_19=255, mask_SORT_1=31, mask_SORT_26=511, mask_SORT_3=1, mask_SORT_5=1023, state_6=0, var_101=38, var_103=72, var_106=60, var_108=76, var_111=56, var_113=67, var_116=40, var_118=70, var_121=48, var_123=80, var_126=32, var_128=85, var_131=31, var_133=84, var_136=29, var_138=78, var_141=21, var_143=82, var_146=25, var_148=79, var_151=17, var_153=73, var_156=30, var_15=1, var_160=20, var_162=83, var_165=11, var_169=10, var_171=69, var_176=1, var_25=0, var_29=0, var_30=908, var_31=32, var_32=65, var_34=0, var_38=26, var_43=74, var_46=652, var_48=90, var_51=460, var_53=88, var_56=332, var_58=75, var_61=268, var_63=81, var_66=215, var_68=86, var_71=151, var_73=66, var_76=119, var_78=77, var_81=118, var_83=89, var_86=86, var_88=71, var_8_arg_0=0, var_91=108, var_93=87, var_96=39, var_98=68, var_9=0] [L126] EXPR var_8_arg_0 & mask_SORT_5 VAL [input_2=0, mask_SORT_19=255, mask_SORT_1=31, mask_SORT_26=511, mask_SORT_3=1, mask_SORT_5=1023, state_6=0, var_101=38, var_103=72, var_106=60, var_108=76, var_111=56, var_113=67, var_116=40, var_118=70, var_121=48, var_123=80, var_126=32, var_128=85, var_131=31, var_133=84, var_136=29, var_138=78, var_141=21, var_143=82, var_146=25, var_148=79, var_151=17, var_153=73, var_156=30, var_15=1, var_160=20, var_162=83, var_165=11, var_169=10, var_171=69, var_176=1, var_25=0, var_29=0, var_30=908, var_31=32, var_32=65, var_34=0, var_38=26, var_43=74, var_46=652, var_48=90, var_51=460, var_53=88, var_56=332, var_58=75, var_61=268, var_63=81, var_66=215, var_68=86, var_71=151, var_73=66, var_76=119, var_78=77, var_81=118, var_83=89, var_86=86, var_88=71, var_91=108, var_93=87, var_96=39, var_98=68, var_9=0] [L126] var_8_arg_0 = var_8_arg_0 & mask_SORT_5 [L127] SORT_7 var_8 = var_8_arg_0; [L128] SORT_7 var_10_arg_0 = var_8; [L129] SORT_7 var_10_arg_1 = var_9; [L130] SORT_3 var_10 = var_10_arg_0 == var_10_arg_1; [L131] SORT_5 var_11_arg_0 = state_6; VAL [input_2=0, mask_SORT_19=255, mask_SORT_1=31, mask_SORT_26=511, mask_SORT_3=1, mask_SORT_5=1023, state_6=0, var_101=38, var_103=72, var_106=60, var_108=76, var_10=1, var_111=56, var_113=67, var_116=40, var_118=70, var_11_arg_0=0, var_121=48, var_123=80, var_126=32, var_128=85, var_131=31, var_133=84, var_136=29, var_138=78, var_141=21, var_143=82, var_146=25, var_148=79, var_151=17, var_153=73, var_156=30, var_15=1, var_160=20, var_162=83, var_165=11, var_169=10, var_171=69, var_176=1, var_25=0, var_29=0, var_30=908, var_31=32, var_32=65, var_34=0, var_38=26, var_43=74, var_46=652, var_48=90, var_51=460, var_53=88, var_56=332, var_58=75, var_61=268, var_63=81, var_66=215, var_68=86, var_71=151, var_73=66, var_76=119, var_78=77, var_81=118, var_83=89, var_86=86, var_88=71, var_91=108, var_93=87, var_96=39, var_98=68, var_9=0] [L132] EXPR var_11_arg_0 & mask_SORT_5 VAL [input_2=0, mask_SORT_19=255, mask_SORT_1=31, mask_SORT_26=511, mask_SORT_3=1, mask_SORT_5=1023, state_6=0, var_101=38, var_103=72, var_106=60, var_108=76, var_10=1, var_111=56, var_113=67, var_116=40, var_118=70, var_121=48, var_123=80, var_126=32, var_128=85, var_131=31, var_133=84, var_136=29, var_138=78, var_141=21, var_143=82, var_146=25, var_148=79, var_151=17, var_153=73, var_156=30, var_15=1, var_160=20, var_162=83, var_165=11, var_169=10, var_171=69, var_176=1, var_25=0, var_29=0, var_30=908, var_31=32, var_32=65, var_34=0, var_38=26, var_43=74, var_46=652, var_48=90, var_51=460, var_53=88, var_56=332, var_58=75, var_61=268, var_63=81, var_66=215, var_68=86, var_71=151, var_73=66, var_76=119, var_78=77, var_81=118, var_83=89, var_86=86, var_88=71, var_91=108, var_93=87, var_96=39, var_98=68, var_9=0] [L132] var_11_arg_0 = var_11_arg_0 & mask_SORT_5 [L133] SORT_7 var_11 = var_11_arg_0; [L134] SORT_7 var_12_arg_0 = var_11; [L135] SORT_7 var_12_arg_1 = var_9; [L136] SORT_3 var_12 = var_12_arg_0 == var_12_arg_1; [L137] SORT_3 var_13_arg_0 = var_12; [L138] SORT_3 var_13 = ~var_13_arg_0; [L139] SORT_3 var_14_arg_0 = var_10; [L140] SORT_3 var_14_arg_1 = var_13; VAL [input_2=0, mask_SORT_19=255, mask_SORT_1=31, mask_SORT_26=511, mask_SORT_3=1, mask_SORT_5=1023, state_6=0, var_101=38, var_103=72, var_106=60, var_108=76, var_111=56, var_113=67, var_116=40, var_118=70, var_121=48, var_123=80, var_126=32, var_128=85, var_131=31, var_133=84, var_136=29, var_138=78, var_141=21, var_143=82, var_146=25, var_148=79, var_14_arg_0=1, var_14_arg_1=-2, var_151=17, var_153=73, var_156=30, var_15=1, var_160=20, var_162=83, var_165=11, var_169=10, var_171=69, var_176=1, var_25=0, var_29=0, var_30=908, var_31=32, var_32=65, var_34=0, var_38=26, var_43=74, var_46=652, var_48=90, var_51=460, var_53=88, var_56=332, var_58=75, var_61=268, var_63=81, var_66=215, var_68=86, var_71=151, var_73=66, var_76=119, var_78=77, var_81=118, var_83=89, var_86=86, var_88=71, var_91=108, var_93=87, var_96=39, var_98=68, var_9=0] [L141] EXPR var_14_arg_0 | var_14_arg_1 VAL [input_2=0, mask_SORT_19=255, mask_SORT_1=31, mask_SORT_26=511, mask_SORT_3=1, mask_SORT_5=1023, state_6=0, var_101=38, var_103=72, var_106=60, var_108=76, var_111=56, var_113=67, var_116=40, var_118=70, var_121=48, var_123=80, var_126=32, var_128=85, var_131=31, var_133=84, var_136=29, var_138=78, var_141=21, var_143=82, var_146=25, var_148=79, var_151=17, var_153=73, var_156=30, var_15=1, var_160=20, var_162=83, var_165=11, var_169=10, var_171=69, var_176=1, var_25=0, var_29=0, var_30=908, var_31=32, var_32=65, var_34=0, var_38=26, var_43=74, var_46=652, var_48=90, var_51=460, var_53=88, var_56=332, var_58=75, var_61=268, var_63=81, var_66=215, var_68=86, var_71=151, var_73=66, var_76=119, var_78=77, var_81=118, var_83=89, var_86=86, var_88=71, var_91=108, var_93=87, var_96=39, var_98=68, var_9=0] [L141] SORT_3 var_14 = var_14_arg_0 | var_14_arg_1; [L142] SORT_3 var_16_arg_0 = var_14; [L143] SORT_3 var_16 = ~var_16_arg_0; [L144] SORT_3 var_17_arg_0 = var_15; [L145] SORT_3 var_17_arg_1 = var_16; VAL [input_2=0, mask_SORT_19=255, mask_SORT_1=31, mask_SORT_26=511, mask_SORT_3=1, mask_SORT_5=1023, state_6=0, var_101=38, var_103=72, var_106=60, var_108=76, var_111=56, var_113=67, var_116=40, var_118=70, var_121=48, var_123=80, var_126=32, var_128=85, var_131=31, var_133=84, var_136=29, var_138=78, var_141=21, var_143=82, var_146=25, var_148=79, var_151=17, var_153=73, var_156=30, var_15=1, var_160=20, var_162=83, var_165=11, var_169=10, var_171=69, var_176=1, var_17_arg_0=1, var_17_arg_1=-255, var_25=0, var_29=0, var_30=908, var_31=32, var_32=65, var_34=0, var_38=26, var_43=74, var_46=652, var_48=90, var_51=460, var_53=88, var_56=332, var_58=75, var_61=268, var_63=81, var_66=215, var_68=86, var_71=151, var_73=66, var_76=119, var_78=77, var_81=118, var_83=89, var_86=86, var_88=71, var_91=108, var_93=87, var_96=39, var_98=68, var_9=0] [L146] EXPR var_17_arg_0 & var_17_arg_1 VAL [input_2=0, mask_SORT_19=255, mask_SORT_1=31, mask_SORT_26=511, mask_SORT_3=1, mask_SORT_5=1023, state_6=0, var_101=38, var_103=72, var_106=60, var_108=76, var_111=56, var_113=67, var_116=40, var_118=70, var_121=48, var_123=80, var_126=32, var_128=85, var_131=31, var_133=84, var_136=29, var_138=78, var_141=21, var_143=82, var_146=25, var_148=79, var_151=17, var_153=73, var_156=30, var_15=1, var_160=20, var_162=83, var_165=11, var_169=10, var_171=69, var_176=1, var_25=0, var_29=0, var_30=908, var_31=32, var_32=65, var_34=0, var_38=26, var_43=74, var_46=652, var_48=90, var_51=460, var_53=88, var_56=332, var_58=75, var_61=268, var_63=81, var_66=215, var_68=86, var_71=151, var_73=66, var_76=119, var_78=77, var_81=118, var_83=89, var_86=86, var_88=71, var_91=108, var_93=87, var_96=39, var_98=68, var_9=0] [L146] SORT_3 var_17 = var_17_arg_0 & var_17_arg_1; [L147] EXPR var_17 & mask_SORT_3 VAL [input_2=0, mask_SORT_19=255, mask_SORT_1=31, mask_SORT_26=511, mask_SORT_3=1, mask_SORT_5=1023, state_6=0, var_101=38, var_103=72, var_106=60, var_108=76, var_111=56, var_113=67, var_116=40, var_118=70, var_121=48, var_123=80, var_126=32, var_128=85, var_131=31, var_133=84, var_136=29, var_138=78, var_141=21, var_143=82, var_146=25, var_148=79, var_151=17, var_153=73, var_156=30, var_15=1, var_160=20, var_162=83, var_165=11, var_169=10, var_171=69, var_176=1, var_25=0, var_29=0, var_30=908, var_31=32, var_32=65, var_34=0, var_38=26, var_43=74, var_46=652, var_48=90, var_51=460, var_53=88, var_56=332, var_58=75, var_61=268, var_63=81, var_66=215, var_68=86, var_71=151, var_73=66, var_76=119, var_78=77, var_81=118, var_83=89, var_86=86, var_88=71, var_91=108, var_93=87, var_96=39, var_98=68, var_9=0] [L147] var_17 = var_17 & mask_SORT_3 [L148] SORT_3 bad_18_arg_0 = var_17; [L149] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 166 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 461 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 461 mSDsluCounter, 3282 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2333 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 949 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=181occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 146 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 [2024-11-08 17:28:06,589 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/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 6ce33b6f81168af3d96568d671c639f1b150a10746ef41348bbd6ceb49bdfdbb --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 17:28:08,702 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:28:08,791 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-08 17:28:08,796 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:28:08,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:28:08,829 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:28:08,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:28:08,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:28:08,831 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:28:08,831 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:28:08,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:28:08,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:28:08,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:28:08,835 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:28:08,835 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:28:08,835 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:28:08,836 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:28:08,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:28:08,837 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:28:08,839 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:28:08,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:28:08,840 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:28:08,840 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 17:28:08,841 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:28:08,841 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 17:28:08,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:28:08,841 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:28:08,842 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:28:08,842 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:28:08,842 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:28:08,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:28:08,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:28:08,843 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:28:08,843 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:28:08,843 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:28:08,843 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 17:28:08,843 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 17:28:08,844 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:28:08,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:28:08,845 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:28:08,845 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:28:08,845 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ce33b6f81168af3d96568d671c639f1b150a10746ef41348bbd6ceb49bdfdbb [2024-11-08 17:28:09,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:28:09,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:28:09,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:28:09,183 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:28:09,184 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:28:09,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2024-11-08 17:28:10,652 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:28:10,920 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:28:10,921 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2024-11-08 17:28:10,934 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/913caa4d9/f54733d50c684899a2439092fbbbbd7e/FLAG72d739f0d [2024-11-08 17:28:10,952 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/913caa4d9/f54733d50c684899a2439092fbbbbd7e [2024-11-08 17:28:10,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:28:10,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:28:10,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:28:10,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:28:10,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:28:10,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:28:10" (1/1) ... [2024-11-08 17:28:10,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7486cf48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:10, skipping insertion in model container [2024-11-08 17:28:10,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:28:10" (1/1) ... [2024-11-08 17:28:11,006 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:28:11,214 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/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1251,1264] [2024-11-08 17:28:11,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:28:11,398 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:28:11,410 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/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1251,1264] [2024-11-08 17:28:11,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:28:11,498 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:28:11,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11 WrapperNode [2024-11-08 17:28:11,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:28:11,500 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:28:11,500 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:28:11,500 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:28:11,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11" (1/1) ... [2024-11-08 17:28:11,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11" (1/1) ... [2024-11-08 17:28:11,583 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 447 [2024-11-08 17:28:11,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:28:11,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:28:11,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:28:11,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:28:11,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11" (1/1) ... [2024-11-08 17:28:11,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11" (1/1) ... [2024-11-08 17:28:11,614 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11" (1/1) ... [2024-11-08 17:28:11,638 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]. [2024-11-08 17:28:11,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11" (1/1) ... [2024-11-08 17:28:11,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11" (1/1) ... [2024-11-08 17:28:11,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11" (1/1) ... [2024-11-08 17:28:11,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11" (1/1) ... [2024-11-08 17:28:11,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11" (1/1) ... [2024-11-08 17:28:11,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11" (1/1) ... [2024-11-08 17:28:11,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:28:11,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:28:11,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:28:11,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:28:11,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11" (1/1) ... [2024-11-08 17:28:11,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:28:11,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 17:28:11,736 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) [2024-11-08 17:28:11,742 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 [2024-11-08 17:28:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:28:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 17:28:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:28:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:28:11,944 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:28:11,946 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:28:12,574 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-08 17:28:12,574 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:28:12,585 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:28:12,586 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:28:12,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:28:12 BoogieIcfgContainer [2024-11-08 17:28:12,587 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:28:12,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:28:12,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:28:12,592 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:28:12,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:28:10" (1/3) ... [2024-11-08 17:28:12,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c91f542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:28:12, skipping insertion in model container [2024-11-08 17:28:12,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:28:11" (2/3) ... [2024-11-08 17:28:12,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c91f542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:28:12, skipping insertion in model container [2024-11-08 17:28:12,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:28:12" (3/3) ... [2024-11-08 17:28:12,596 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Huffman_enc.c [2024-11-08 17:28:12,612 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:28:12,613 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:28:12,683 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:28:12,689 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;@213915eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:28:12,689 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:28:12,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2024-11-08 17:28:12,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 17:28:12,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:28:12,700 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-08 17:28:12,702 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:28:12,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:28:12,709 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-08 17:28:12,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 17:28:12,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040774805] [2024-11-08 17:28:12,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:28:12,726 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 [2024-11-08 17:28:12,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 17:28:12,729 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) [2024-11-08 17:28:12,730 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 [2024-11-08 17:28:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:28:12,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 17:28:12,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:28:13,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:28:13,139 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:28:13,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 17:28:13,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040774805] [2024-11-08 17:28:13,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040774805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:28:13,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:28:13,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:28:13,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539506387] [2024-11-08 17:28:13,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:28:13,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:28:13,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 17:28:13,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:28:13,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:28:13,170 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-08 17:28:13,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:28:13,217 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2024-11-08 17:28:13,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:28:13,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2024-11-08 17:28:13,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:28:13,225 INFO L225 Difference]: With dead ends: 13 [2024-11-08 17:28:13,225 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 17:28:13,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:28:13,232 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:28:13,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:28:13,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 17:28:13,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 17:28:13,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-08 17:28:13,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 17:28:13,256 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2024-11-08 17:28:13,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:28:13,256 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 17:28:13,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-08 17:28:13,257 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 17:28:13,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 17:28:13,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:28:13,265 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 [2024-11-08 17:28:13,460 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 [2024-11-08 17:28:13,464 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 17:28:13,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 17:28:13,495 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:28:13,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:28:13 BoogieIcfgContainer [2024-11-08 17:28:13,526 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:28:13,526 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:28:13,526 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:28:13,550 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:28:13,555 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:28:12" (3/4) ... [2024-11-08 17:28:13,561 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 17:28:13,579 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-08 17:28:13,580 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 17:28:13,582 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 17:28:13,583 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 17:28:13,723 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 17:28:13,724 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 17:28:13,724 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:28:13,725 INFO L158 Benchmark]: Toolchain (without parser) took 2768.61ms. Allocated memory was 73.4MB in the beginning and 119.5MB in the end (delta: 46.1MB). Free memory was 46.1MB in the beginning and 83.8MB in the end (delta: -37.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-11-08 17:28:13,725 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 32.9MB in the beginning and 32.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:28:13,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 540.37ms. Allocated memory is still 73.4MB. Free memory was 45.8MB in the beginning and 42.6MB in the end (delta: 3.2MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-11-08 17:28:13,726 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.75ms. Allocated memory is still 73.4MB. Free memory was 42.6MB in the beginning and 38.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:28:13,726 INFO L158 Benchmark]: Boogie Preprocessor took 107.54ms. Allocated memory is still 73.4MB. Free memory was 38.6MB in the beginning and 33.5MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 17:28:13,727 INFO L158 Benchmark]: RCFGBuilder took 892.73ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 33.5MB in the beginning and 41.7MB in the end (delta: -8.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-11-08 17:28:13,727 INFO L158 Benchmark]: TraceAbstraction took 937.07ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 41.1MB in the beginning and 93.1MB in the end (delta: -51.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:28:13,727 INFO L158 Benchmark]: Witness Printer took 197.83ms. Allocated memory is still 119.5MB. Free memory was 92.1MB in the beginning and 83.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 17:28:13,729 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 32.9MB in the beginning and 32.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 540.37ms. Allocated memory is still 73.4MB. Free memory was 45.8MB in the beginning and 42.6MB in the end (delta: 3.2MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.75ms. Allocated memory is still 73.4MB. Free memory was 42.6MB in the beginning and 38.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.54ms. Allocated memory is still 73.4MB. Free memory was 38.6MB in the beginning and 33.5MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 892.73ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 33.5MB in the beginning and 41.7MB in the end (delta: -8.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 937.07ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 41.1MB in the beginning and 93.1MB in the end (delta: -51.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 197.83ms. Allocated memory is still 119.5MB. Free memory was 92.1MB in the beginning and 83.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. 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 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 4 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 26 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: (((0 == var_9) && (1 == mask_SORT_3)) && (1023 == mask_SORT_5)) RESULT: Ultimate proved your program to be correct! [2024-11-08 17:28:13,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE