./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/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-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 21:54:54,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 21:54:54,648 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-12 21:54:54,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 21:54:54,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 21:54:54,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 21:54:54,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 21:54:54,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 21:54:54,688 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 21:54:54,691 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 21:54:54,691 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 21:54:54,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 21:54:54,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 21:54:54,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 21:54:54,692 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 21:54:54,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 21:54:54,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 21:54:54,692 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 21:54:54,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 21:54:54,694 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 21:54:54,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 21:54:54,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 21:54:54,698 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 21:54:54,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 21:54:54,699 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 21:54:54,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 21:54:54,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 21:54:54,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 21:54:54,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 21:54:54,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:54:54,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 21:54:54,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 21:54:54,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 21:54:54,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 21:54:54,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 21:54:54,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 21:54:54,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 21:54:54,701 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 21:54:54,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 21:54:54,701 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ce33b6f81168af3d96568d671c639f1b150a10746ef41348bbd6ceb49bdfdbb [2024-10-12 21:54:54,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 21:54:54,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 21:54:54,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 21:54:54,947 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 21:54:54,947 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 21:54:54,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2024-10-12 21:54:56,257 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 21:54:56,459 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 21:54:56,460 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2024-10-12 21:54:56,474 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a19ee3b7c/5e7f8570430c478587f5ed8492ba6d87/FLAGba9ee375e [2024-10-12 21:54:56,489 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a19ee3b7c/5e7f8570430c478587f5ed8492ba6d87 [2024-10-12 21:54:56,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 21:54:56,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 21:54:56,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 21:54:56,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 21:54:56,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 21:54:56,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:56,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a07aa0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56, skipping insertion in model container [2024-10-12 21:54:56,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:56,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 21:54:56,676 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1251,1264] [2024-10-12 21:54:56,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:54:56,797 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 21:54:56,806 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1251,1264] [2024-10-12 21:54:56,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:54:56,883 INFO L204 MainTranslator]: Completed translation [2024-10-12 21:54:56,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56 WrapperNode [2024-10-12 21:54:56,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 21:54:56,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 21:54:56,884 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 21:54:56,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 21:54:56,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:56,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:56,973 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 759 [2024-10-12 21:54:56,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 21:54:56,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 21:54:56,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 21:54:56,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 21:54:56,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:56,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:57,000 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:57,032 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 21:54:57,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:57,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:57,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:57,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:57,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:57,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:57,090 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 21:54:57,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 21:54:57,092 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 21:54:57,092 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 21:54:57,093 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56" (1/1) ... [2024-10-12 21:54:57,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:54:57,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 21:54:57,121 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) [2024-10-12 21:54:57,124 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 [2024-10-12 21:54:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 21:54:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 21:54:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 21:54:57,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 21:54:57,293 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 21:54:57,295 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 21:54:58,249 INFO L? ?]: Removed 427 outVars from TransFormulas that were not future-live. [2024-10-12 21:54:58,250 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 21:54:58,290 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 21:54:58,291 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 21:54:58,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:54:58 BoogieIcfgContainer [2024-10-12 21:54:58,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 21:54:58,293 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 21:54:58,293 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 21:54:58,296 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 21:54:58,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 09:54:56" (1/3) ... [2024-10-12 21:54:58,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310754b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:54:58, skipping insertion in model container [2024-10-12 21:54:58,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:56" (2/3) ... [2024-10-12 21:54:58,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310754b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:54:58, skipping insertion in model container [2024-10-12 21:54:58,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:54:58" (3/3) ... [2024-10-12 21:54:58,299 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Huffman_enc.c [2024-10-12 21:54:58,314 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 21:54:58,314 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 21:54:58,373 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 21:54:58,380 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;@2659c577, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 21:54:58,381 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 21:54:58,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 161 states have (on average 1.5031055900621118) internal successors, (242), 162 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:54:58,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-12 21:54:58,391 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:54:58,391 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:54:58,392 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:54:58,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:54:58,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1967160268, now seen corresponding path program 1 times [2024-10-12 21:54:58,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:54:58,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866712973] [2024-10-12 21:54:58,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:54:58,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:54:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:54:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:54:58,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:54:58,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866712973] [2024-10-12 21:54:58,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866712973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:54:58,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:54:58,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 21:54:58,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087425940] [2024-10-12 21:54:58,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:54:58,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 21:54:58,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:54:58,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 21:54:58,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 21:54:58,997 INFO L87 Difference]: Start difference. First operand has 163 states, 161 states have (on average 1.5031055900621118) internal successors, (242), 162 states have internal predecessors, (242), 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 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:54:59,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:54:59,056 INFO L93 Difference]: Finished difference Result 322 states and 480 transitions. [2024-10-12 21:54:59,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 21:54:59,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-10-12 21:54:59,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:54:59,068 INFO L225 Difference]: With dead ends: 322 [2024-10-12 21:54:59,068 INFO L226 Difference]: Without dead ends: 164 [2024-10-12 21:54:59,071 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 [2024-10-12 21:54:59,075 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:54:59,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 706 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:54:59,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-10-12 21:54:59,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-10-12 21:54:59,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 163 states have (on average 1.4846625766871167) internal successors, (242), 163 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:54:59,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 242 transitions. [2024-10-12 21:54:59,117 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 242 transitions. Word has length 18 [2024-10-12 21:54:59,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:54:59,118 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 242 transitions. [2024-10-12 21:54:59,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:54:59,118 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 242 transitions. [2024-10-12 21:54:59,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-12 21:54:59,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:54:59,119 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:54:59,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 21:54:59,119 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:54:59,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:54:59,120 INFO L85 PathProgramCache]: Analyzing trace with hash -850730920, now seen corresponding path program 1 times [2024-10-12 21:54:59,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:54:59,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238139976] [2024-10-12 21:54:59,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:54:59,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:54:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:54:59,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:54:59,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:54:59,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238139976] [2024-10-12 21:54:59,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238139976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:54:59,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:54:59,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 21:54:59,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727863022] [2024-10-12 21:54:59,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:54:59,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 21:54:59,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:54:59,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 21:54:59,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 21:54:59,265 INFO L87 Difference]: Start difference. First operand 164 states and 242 transitions. 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) [2024-10-12 21:54:59,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:54:59,309 INFO L93 Difference]: Finished difference Result 325 states and 480 transitions. [2024-10-12 21:54:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 21:54:59,309 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 [2024-10-12 21:54:59,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:54:59,310 INFO L225 Difference]: With dead ends: 325 [2024-10-12 21:54:59,310 INFO L226 Difference]: Without dead ends: 166 [2024-10-12 21:54:59,311 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 [2024-10-12 21:54:59,312 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:54:59,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 703 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:54:59,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-10-12 21:54:59,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-10-12 21:54:59,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 1.4787878787878788) internal successors, (244), 165 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:54:59,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 244 transitions. [2024-10-12 21:54:59,329 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 244 transitions. Word has length 19 [2024-10-12 21:54:59,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:54:59,329 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 244 transitions. [2024-10-12 21:54:59,329 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) [2024-10-12 21:54:59,330 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 244 transitions. [2024-10-12 21:54:59,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-12 21:54:59,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:54:59,330 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] [2024-10-12 21:54:59,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 21:54:59,331 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:54:59,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:54:59,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1700820595, now seen corresponding path program 1 times [2024-10-12 21:54:59,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:54:59,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612974888] [2024-10-12 21:54:59,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:54:59,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:54:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:54:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:54:59,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:54:59,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612974888] [2024-10-12 21:54:59,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612974888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:54:59,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:54:59,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 21:54:59,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123700135] [2024-10-12 21:54:59,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:54:59,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 21:54:59,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:54:59,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 21:54:59,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 21:54:59,750 INFO L87 Difference]: Start difference. First operand 166 states and 244 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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) [2024-10-12 21:54:59,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:54:59,815 INFO L93 Difference]: Finished difference Result 335 states and 493 transitions. [2024-10-12 21:54:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 21:54:59,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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 [2024-10-12 21:54:59,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:54:59,817 INFO L225 Difference]: With dead ends: 335 [2024-10-12 21:54:59,820 INFO L226 Difference]: Without dead ends: 174 [2024-10-12 21:54:59,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-12 21:54:59,822 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 250 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:54:59,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 926 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:54:59,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-10-12 21:54:59,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2024-10-12 21:54:59,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.4736842105263157) internal successors, (252), 171 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:54:59,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 252 transitions. [2024-10-12 21:54:59,834 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 252 transitions. Word has length 20 [2024-10-12 21:54:59,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:54:59,834 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 252 transitions. [2024-10-12 21:54:59,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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) [2024-10-12 21:54:59,835 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 252 transitions. [2024-10-12 21:54:59,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-12 21:54:59,836 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:54:59,836 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] [2024-10-12 21:54:59,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 21:54:59,837 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:54:59,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:54:59,837 INFO L85 PathProgramCache]: Analyzing trace with hash -276944001, now seen corresponding path program 1 times [2024-10-12 21:54:59,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:54:59,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985646564] [2024-10-12 21:54:59,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:54:59,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:54:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:54:59,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:54:59,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:54:59,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985646564] [2024-10-12 21:54:59,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985646564] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:54:59,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:54:59,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:54:59,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472906050] [2024-10-12 21:54:59,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:54:59,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:54:59,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:54:59,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:54:59,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:54:59,989 INFO L87 Difference]: Start difference. First operand 172 states and 252 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) [2024-10-12 21:55:00,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:55:00,003 INFO L93 Difference]: Finished difference Result 339 states and 497 transitions. [2024-10-12 21:55:00,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:55:00,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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 [2024-10-12 21:55:00,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:55:00,005 INFO L225 Difference]: With dead ends: 339 [2024-10-12 21:55:00,005 INFO L226 Difference]: Without dead ends: 172 [2024-10-12 21:55:00,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:55:00,006 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 1 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:55:00,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 466 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:55:00,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-10-12 21:55:00,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-10-12 21:55:00,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.4678362573099415) internal successors, (251), 171 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:55:00,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 251 transitions. [2024-10-12 21:55:00,019 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 251 transitions. Word has length 21 [2024-10-12 21:55:00,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:55:00,019 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 251 transitions. [2024-10-12 21:55:00,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) [2024-10-12 21:55:00,019 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 251 transitions. [2024-10-12 21:55:00,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-12 21:55:00,020 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:55:00,020 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] [2024-10-12 21:55:00,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 21:55:00,020 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:55:00,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:55:00,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1937757005, now seen corresponding path program 1 times [2024-10-12 21:55:00,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:55:00,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660670029] [2024-10-12 21:55:00,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:55:00,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:55:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:55:00,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:55:00,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:55:00,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660670029] [2024-10-12 21:55:00,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660670029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:55:00,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:55:00,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 21:55:00,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286859603] [2024-10-12 21:55:00,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:55:00,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 21:55:00,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:55:00,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 21:55:00,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 21:55:00,123 INFO L87 Difference]: Start difference. First operand 172 states and 251 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2024-10-12 21:55:00,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:55:00,181 INFO L93 Difference]: Finished difference Result 491 states and 716 transitions. [2024-10-12 21:55:00,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 21:55:00,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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 [2024-10-12 21:55:00,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:55:00,183 INFO L225 Difference]: With dead ends: 491 [2024-10-12 21:55:00,184 INFO L226 Difference]: Without dead ends: 324 [2024-10-12 21:55:00,184 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 [2024-10-12 21:55:00,185 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 212 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:55:00,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 920 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:55:00,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-10-12 21:55:00,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 179. [2024-10-12 21:55:00,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.4606741573033708) internal successors, (260), 178 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:55:00,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 260 transitions. [2024-10-12 21:55:00,196 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 260 transitions. Word has length 21 [2024-10-12 21:55:00,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:55:00,197 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 260 transitions. [2024-10-12 21:55:00,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2024-10-12 21:55:00,198 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 260 transitions. [2024-10-12 21:55:00,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-12 21:55:00,198 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:55:00,198 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] [2024-10-12 21:55:00,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 21:55:00,199 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:55:00,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:55:00,199 INFO L85 PathProgramCache]: Analyzing trace with hash 324016938, now seen corresponding path program 1 times [2024-10-12 21:55:00,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:55:00,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953514691] [2024-10-12 21:55:00,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:55:00,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:55:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 21:55:00,221 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 21:55:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 21:55:00,264 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 21:55:00,264 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 21:55:00,265 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 21:55:00,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 21:55:00,271 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-12 21:55:00,317 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 21:55:00,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:55:00 BoogieIcfgContainer [2024-10-12 21:55:00,319 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 21:55:00,320 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 21:55:00,320 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 21:55:00,320 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 21:55:00,321 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:54:58" (3/4) ... [2024-10-12 21:55:00,322 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 21:55:00,323 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 21:55:00,324 INFO L158 Benchmark]: Toolchain (without parser) took 3830.33ms. Allocated memory was 176.2MB in the beginning and 281.0MB in the end (delta: 104.9MB). Free memory was 117.8MB in the beginning and 76.7MB in the end (delta: 41.0MB). Peak memory consumption was 148.0MB. Max. memory is 16.1GB. [2024-10-12 21:55:00,324 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 21:55:00,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.61ms. Allocated memory is still 176.2MB. Free memory was 117.8MB in the beginning and 92.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-12 21:55:00,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.95ms. Allocated memory is still 176.2MB. Free memory was 92.6MB in the beginning and 77.2MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-12 21:55:00,325 INFO L158 Benchmark]: Boogie Preprocessor took 117.01ms. Allocated memory is still 176.2MB. Free memory was 77.2MB in the beginning and 67.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-12 21:55:00,325 INFO L158 Benchmark]: RCFGBuilder took 1199.65ms. Allocated memory was 176.2MB in the beginning and 281.0MB in the end (delta: 104.9MB). Free memory was 67.4MB in the beginning and 144.7MB in the end (delta: -77.3MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2024-10-12 21:55:00,325 INFO L158 Benchmark]: TraceAbstraction took 2026.77ms. Allocated memory is still 281.0MB. Free memory was 143.7MB in the beginning and 76.7MB in the end (delta: 67.0MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2024-10-12 21:55:00,325 INFO L158 Benchmark]: Witness Printer took 3.47ms. Allocated memory is still 281.0MB. Free memory is still 76.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 21:55:00,326 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.61ms. Allocated memory is still 176.2MB. Free memory was 117.8MB in the beginning and 92.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.95ms. Allocated memory is still 176.2MB. Free memory was 92.6MB in the beginning and 77.2MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 117.01ms. Allocated memory is still 176.2MB. Free memory was 77.2MB in the beginning and 67.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1199.65ms. Allocated memory was 176.2MB in the beginning and 281.0MB in the end (delta: 104.9MB). Free memory was 67.4MB in the beginning and 144.7MB in the end (delta: -77.3MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2026.77ms. Allocated memory is still 281.0MB. Free memory was 143.7MB in the beginning and 76.7MB in the end (delta: 67.0MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. * Witness Printer took 3.47ms. Allocated memory is still 281.0MB. Free memory is still 76.7MB. 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, 163 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 463 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 463 mSDsluCounter, 3721 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2548 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1173 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=5, InterpolantAutomatonStates: 22, 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, 5 MinimizatonAttempts, 147 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-12 21:55:00,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/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-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 21:55:02,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 21:55:02,356 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-10-12 21:55:02,360 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 21:55:02,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 21:55:02,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 21:55:02,393 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 21:55:02,393 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 21:55:02,393 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 21:55:02,394 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 21:55:02,394 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 21:55:02,394 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 21:55:02,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 21:55:02,396 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 21:55:02,397 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 21:55:02,397 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 21:55:02,397 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 21:55:02,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 21:55:02,398 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 21:55:02,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 21:55:02,398 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 21:55:02,403 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-12 21:55:02,403 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-12 21:55:02,403 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 21:55:02,404 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-12 21:55:02,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 21:55:02,404 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 21:55:02,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 21:55:02,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 21:55:02,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 21:55:02,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 21:55:02,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:55:02,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 21:55:02,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 21:55:02,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 21:55:02,406 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-12 21:55:02,406 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-12 21:55:02,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 21:55:02,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 21:55:02,406 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 21:55:02,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 21:55:02,408 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-12 21:55:02,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ce33b6f81168af3d96568d671c639f1b150a10746ef41348bbd6ceb49bdfdbb [2024-10-12 21:55:02,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 21:55:02,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 21:55:02,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 21:55:02,718 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 21:55:02,718 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 21:55:02,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2024-10-12 21:55:04,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 21:55:04,313 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 21:55:04,314 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2024-10-12 21:55:04,328 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8f679d4d/93c4368dc94842ada6a436a20714ae45/FLAG6c67816b7 [2024-10-12 21:55:04,343 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8f679d4d/93c4368dc94842ada6a436a20714ae45 [2024-10-12 21:55:04,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 21:55:04,347 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 21:55:04,348 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 21:55:04,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 21:55:04,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 21:55:04,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71cd784c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04, skipping insertion in model container [2024-10-12 21:55:04,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,390 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 21:55:04,561 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1251,1264] [2024-10-12 21:55:04,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:55:04,709 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 21:55:04,720 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1251,1264] [2024-10-12 21:55:04,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:55:04,794 INFO L204 MainTranslator]: Completed translation [2024-10-12 21:55:04,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04 WrapperNode [2024-10-12 21:55:04,797 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 21:55:04,799 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 21:55:04,799 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 21:55:04,799 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 21:55:04,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,868 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 447 [2024-10-12 21:55:04,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 21:55:04,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 21:55:04,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 21:55:04,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 21:55:04,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,889 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,911 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 21:55:04,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,932 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,937 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,946 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 21:55:04,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 21:55:04,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 21:55:04,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 21:55:04,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04" (1/1) ... [2024-10-12 21:55:04,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:55:04,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 21:55:04,989 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) [2024-10-12 21:55:04,993 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 [2024-10-12 21:55:05,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 21:55:05,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-12 21:55:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 21:55:05,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 21:55:05,191 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 21:55:05,193 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 21:55:05,698 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-10-12 21:55:05,698 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 21:55:05,732 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 21:55:05,733 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 21:55:05,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:55:05 BoogieIcfgContainer [2024-10-12 21:55:05,733 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 21:55:05,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 21:55:05,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 21:55:05,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 21:55:05,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 09:55:04" (1/3) ... [2024-10-12 21:55:05,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e27010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:55:05, skipping insertion in model container [2024-10-12 21:55:05,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:55:04" (2/3) ... [2024-10-12 21:55:05,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e27010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:55:05, skipping insertion in model container [2024-10-12 21:55:05,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:55:05" (3/3) ... [2024-10-12 21:55:05,739 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Huffman_enc.c [2024-10-12 21:55:05,753 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 21:55:05,754 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 21:55:05,807 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 21:55:05,813 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;@502bdc23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 21:55:05,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 21:55:05,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:55:05,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-12 21:55:05,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:55:05,823 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-12 21:55:05,823 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:55:05,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:55:05,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1614770, now seen corresponding path program 1 times [2024-10-12 21:55:05,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 21:55:05,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454438705] [2024-10-12 21:55:05,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:55:05,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 21:55:05,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 21:55:05,844 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) [2024-10-12 21:55:05,845 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 [2024-10-12 21:55:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:55:06,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-12 21:55:06,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 21:55:06,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:55:06,241 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 21:55:06,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 21:55:06,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454438705] [2024-10-12 21:55:06,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454438705] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:55:06,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:55:06,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:55:06,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259553930] [2024-10-12 21:55:06,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:55:06,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 21:55:06,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 21:55:06,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 21:55:06,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 21:55:06,274 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:55:06,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:55:06,325 INFO L93 Difference]: Finished difference Result 10 states and 13 transitions. [2024-10-12 21:55:06,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 21:55:06,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-10-12 21:55:06,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:55:06,332 INFO L225 Difference]: With dead ends: 10 [2024-10-12 21:55:06,332 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 21:55:06,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 21:55:06,337 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:55:06,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:55:06,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 21:55:06,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 21:55:06,357 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) [2024-10-12 21:55:06,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 21:55:06,358 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2024-10-12 21:55:06,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:55:06,359 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 21:55:06,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:55:06,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 21:55:06,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 21:55:06,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 21:55:06,367 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 [2024-10-12 21:55:06,563 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 [2024-10-12 21:55:06,566 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-12 21:55:06,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 21:55:06,586 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 21:55:06,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:55:06 BoogieIcfgContainer [2024-10-12 21:55:06,599 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 21:55:06,599 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 21:55:06,599 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 21:55:06,599 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 21:55:06,599 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:55:05" (3/4) ... [2024-10-12 21:55:06,601 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 21:55:06,611 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-12 21:55:06,611 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-12 21:55:06,612 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 21:55:06,612 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 21:55:06,768 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 21:55:06,768 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 21:55:06,768 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 21:55:06,769 INFO L158 Benchmark]: Toolchain (without parser) took 2421.89ms. Allocated memory was 75.5MB in the beginning and 140.5MB in the end (delta: 65.0MB). Free memory was 46.5MB in the beginning and 105.6MB in the end (delta: -59.2MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2024-10-12 21:55:06,769 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory is still 32.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 21:55:06,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.06ms. Allocated memory is still 75.5MB. Free memory was 46.3MB in the beginning and 44.3MB in the end (delta: 2.1MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-10-12 21:55:06,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.31ms. Allocated memory is still 75.5MB. Free memory was 43.9MB in the beginning and 39.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 21:55:06,770 INFO L158 Benchmark]: Boogie Preprocessor took 84.03ms. Allocated memory is still 75.5MB. Free memory was 39.8MB in the beginning and 34.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 21:55:06,770 INFO L158 Benchmark]: RCFGBuilder took 778.93ms. Allocated memory was 75.5MB in the beginning and 115.3MB in the end (delta: 39.8MB). Free memory was 34.9MB in the beginning and 60.3MB in the end (delta: -25.4MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2024-10-12 21:55:06,770 INFO L158 Benchmark]: TraceAbstraction took 864.06ms. Allocated memory is still 115.3MB. Free memory was 59.5MB in the beginning and 66.6MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 21:55:06,770 INFO L158 Benchmark]: Witness Printer took 169.30ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 65.6MB in the beginning and 105.6MB in the end (delta: -40.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 21:55:06,771 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory is still 32.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.06ms. Allocated memory is still 75.5MB. Free memory was 46.3MB in the beginning and 44.3MB in the end (delta: 2.1MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.31ms. Allocated memory is still 75.5MB. Free memory was 43.9MB in the beginning and 39.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.03ms. Allocated memory is still 75.5MB. Free memory was 39.8MB in the beginning and 34.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 778.93ms. Allocated memory was 75.5MB in the beginning and 115.3MB in the end (delta: 39.8MB). Free memory was 34.9MB in the beginning and 60.3MB in the end (delta: -25.4MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * TraceAbstraction took 864.06ms. Allocated memory is still 115.3MB. Free memory was 59.5MB in the beginning and 66.6MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 169.30ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 65.6MB in the beginning and 105.6MB in the end (delta: -40.0MB). Peak memory consumption was 4.2MB. 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, 7 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, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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: 0.1s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 4 NumberOfNonLiveVariables, 105 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! [2024-10-12 21:55:06,794 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