./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/zonotope_3.c.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/zonotope_3.c.p+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f57f8b833105028fdf95b78a3cf338388755f00064f1be1e7a158d1da7dbd5a2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:31:32,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:31:32,341 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 11:31:32,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:31:32,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:31:32,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:31:32,390 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:31:32,390 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:31:32,391 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:31:32,392 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:31:32,393 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:31:32,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:31:32,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:31:32,394 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:31:32,394 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:31:32,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:31:32,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:31:32,395 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:31:32,396 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 11:31:32,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:31:32,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:31:32,400 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:31:32,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:31:32,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:31:32,404 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:31:32,404 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:31:32,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:31:32,404 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:31:32,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:31:32,405 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:31:32,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:31:32,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:31:32,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:31:32,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:31:32,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:31:32,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:31:32,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 11:31:32,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 11:31:32,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:31:32,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:31:32,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:31:32,408 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:31:32,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f57f8b833105028fdf95b78a3cf338388755f00064f1be1e7a158d1da7dbd5a2 [2024-11-18 11:31:32,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:31:32,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:31:32,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:31:32,673 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:31:32,673 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:31:32,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/zonotope_3.c.p+cfa-reducer.c [2024-11-18 11:31:34,085 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:31:34,269 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:31:34,270 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_3.c.p+cfa-reducer.c [2024-11-18 11:31:34,279 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf1298594/16ef0591d41149d392699a9ee79f8c68/FLAG3c61e3ecd [2024-11-18 11:31:34,648 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf1298594/16ef0591d41149d392699a9ee79f8c68 [2024-11-18 11:31:34,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:31:34,651 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:31:34,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:31:34,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:31:34,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:31:34,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ba9c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34, skipping insertion in model container [2024-11-18 11:31:34,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,683 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:31:34,853 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_3.c.p+cfa-reducer.c[2717,2730] [2024-11-18 11:31:34,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:31:34,866 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:31:34,887 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_3.c.p+cfa-reducer.c[2717,2730] [2024-11-18 11:31:34,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:31:34,904 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:31:34,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34 WrapperNode [2024-11-18 11:31:34,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:31:34,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:31:34,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:31:34,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:31:34,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,948 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 126 [2024-11-18 11:31:34,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:31:34,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:31:34,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:31:34,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:31:34,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,960 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,970 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 11:31:34,970 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,980 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:31:34,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:31:34,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:31:34,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:31:34,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34" (1/1) ... [2024-11-18 11:31:34,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:31:35,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:31:35,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 11:31:35,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 11:31:35,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:31:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 11:31:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:31:35,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:31:35,159 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:31:35,164 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:31:35,321 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-18 11:31:35,321 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:31:35,336 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:31:35,336 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 11:31:35,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:31:35 BoogieIcfgContainer [2024-11-18 11:31:35,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:31:35,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:31:35,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:31:35,343 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:31:35,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:31:34" (1/3) ... [2024-11-18 11:31:35,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66655915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:31:35, skipping insertion in model container [2024-11-18 11:31:35,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:31:34" (2/3) ... [2024-11-18 11:31:35,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66655915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:31:35, skipping insertion in model container [2024-11-18 11:31:35,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:31:35" (3/3) ... [2024-11-18 11:31:35,347 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_3.c.p+cfa-reducer.c [2024-11-18 11:31:35,363 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:31:35,364 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:31:35,420 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:31:35,426 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;@58ce296e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:31:35,426 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:31:35,430 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:35,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-18 11:31:35,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:31:35,438 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:31:35,439 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:31:35,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:31:35,445 INFO L85 PathProgramCache]: Analyzing trace with hash 739680105, now seen corresponding path program 1 times [2024-11-18 11:31:35,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:31:35,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240604450] [2024-11-18 11:31:35,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:31:35,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:31:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:31:35,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:35,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:31:35,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240604450] [2024-11-18 11:31:35,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240604450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:31:35,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:31:35,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:31:35,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101361736] [2024-11-18 11:31:35,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:31:35,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:31:35,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:31:35,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:31:35,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:31:35,667 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:35,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:31:35,690 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2024-11-18 11:31:35,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:31:35,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-18 11:31:35,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:31:35,698 INFO L225 Difference]: With dead ends: 33 [2024-11-18 11:31:35,698 INFO L226 Difference]: Without dead ends: 19 [2024-11-18 11:31:35,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:31:35,703 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 37 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 [2024-11-18 11:31:35,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 37 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:31:35,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-18 11:31:35,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2024-11-18 11:31:35,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:35,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2024-11-18 11:31:35,726 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 8 [2024-11-18 11:31:35,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:31:35,726 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2024-11-18 11:31:35,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:35,726 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2024-11-18 11:31:35,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-18 11:31:35,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:31:35,727 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:31:35,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 11:31:35,727 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:31:35,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:31:35,728 INFO L85 PathProgramCache]: Analyzing trace with hash 573752309, now seen corresponding path program 1 times [2024-11-18 11:31:35,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:31:35,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852449287] [2024-11-18 11:31:35,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:31:35,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:31:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:31:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:35,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:31:35,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852449287] [2024-11-18 11:31:35,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852449287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:31:35,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:31:35,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:31:35,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047213802] [2024-11-18 11:31:35,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:31:35,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:31:35,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:31:35,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:31:35,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:31:35,807 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:35,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:31:35,827 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2024-11-18 11:31:35,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:31:35,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2024-11-18 11:31:35,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:31:35,829 INFO L225 Difference]: With dead ends: 28 [2024-11-18 11:31:35,830 INFO L226 Difference]: Without dead ends: 14 [2024-11-18 11:31:35,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:31:35,832 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:31:35,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:31:35,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-18 11:31:35,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-18 11:31:35,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2024-11-18 11:31:35,836 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2024-11-18 11:31:35,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:31:35,837 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-11-18 11:31:35,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:35,837 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-18 11:31:35,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-18 11:31:35,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:31:35,839 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:31:35,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 11:31:35,840 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:31:35,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:31:35,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1667531312, now seen corresponding path program 1 times [2024-11-18 11:31:35,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:31:35,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726803137] [2024-11-18 11:31:35,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:31:35,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:31:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:31:35,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:35,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:31:35,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726803137] [2024-11-18 11:31:35,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726803137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 11:31:35,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448758155] [2024-11-18 11:31:35,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:31:35,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:31:35,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:31:35,988 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 11:31:36,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 11:31:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:31:36,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 11:31:36,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:31:36,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:36,168 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 11:31:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:36,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448758155] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 11:31:36,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 11:31:36,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-18 11:31:36,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429229776] [2024-11-18 11:31:36,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 11:31:36,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 11:31:36,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:31:36,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 11:31:36,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-18 11:31:36,210 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:36,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:31:36,247 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2024-11-18 11:31:36,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 11:31:36,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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 12 [2024-11-18 11:31:36,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:31:36,249 INFO L225 Difference]: With dead ends: 33 [2024-11-18 11:31:36,249 INFO L226 Difference]: Without dead ends: 26 [2024-11-18 11:31:36,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-18 11:31:36,251 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:31:36,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 48 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:31:36,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-18 11:31:36,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-18 11:31:36,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:36,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-11-18 11:31:36,255 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 12 [2024-11-18 11:31:36,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:31:36,255 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-11-18 11:31:36,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:36,255 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-11-18 11:31:36,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-18 11:31:36,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:31:36,256 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:31:36,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 11:31:36,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:31:36,461 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:31:36,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:31:36,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1396128379, now seen corresponding path program 2 times [2024-11-18 11:31:36,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:31:36,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449561471] [2024-11-18 11:31:36,462 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 11:31:36,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:31:36,489 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-18 11:31:36,490 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 11:31:36,533 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 11:31:36,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:31:36,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449561471] [2024-11-18 11:31:36,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449561471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:31:36,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:31:36,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 11:31:36,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105696463] [2024-11-18 11:31:36,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:31:36,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 11:31:36,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:31:36,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 11:31:36,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 11:31:36,537 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:36,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:31:36,555 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2024-11-18 11:31:36,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 11:31:36,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 24 [2024-11-18 11:31:36,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:31:36,558 INFO L225 Difference]: With dead ends: 30 [2024-11-18 11:31:36,558 INFO L226 Difference]: Without dead ends: 26 [2024-11-18 11:31:36,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 11:31:36,560 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:31:36,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:31:36,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-18 11:31:36,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-18 11:31:36,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.08) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:36,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2024-11-18 11:31:36,564 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 24 [2024-11-18 11:31:36,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:31:36,565 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2024-11-18 11:31:36,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:36,565 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2024-11-18 11:31:36,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-18 11:31:36,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:31:36,566 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:31:36,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 11:31:36,567 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:31:36,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:31:36,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1379117718, now seen corresponding path program 1 times [2024-11-18 11:31:36,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:31:36,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532361492] [2024-11-18 11:31:36,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:31:36,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:31:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:31:36,747 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:36,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:31:36,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532361492] [2024-11-18 11:31:36,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532361492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 11:31:36,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487119891] [2024-11-18 11:31:36,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:31:36,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:31:36,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:31:36,751 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 11:31:36,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 11:31:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:31:36,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 11:31:36,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:31:36,923 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:36,924 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 11:31:37,025 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:37,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487119891] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 11:31:37,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 11:31:37,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-18 11:31:37,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666144614] [2024-11-18 11:31:37,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 11:31:37,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 11:31:37,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:31:37,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 11:31:37,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-18 11:31:37,030 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:37,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:31:37,069 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2024-11-18 11:31:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 11:31:37,070 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 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 24 [2024-11-18 11:31:37,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:31:37,071 INFO L225 Difference]: With dead ends: 57 [2024-11-18 11:31:37,071 INFO L226 Difference]: Without dead ends: 50 [2024-11-18 11:31:37,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-18 11:31:37,072 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:31:37,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 46 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:31:37,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-18 11:31:37,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-18 11:31:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.0408163265306123) internal successors, (51), 49 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:37,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2024-11-18 11:31:37,078 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 24 [2024-11-18 11:31:37,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:31:37,078 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2024-11-18 11:31:37,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2024-11-18 11:31:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-18 11:31:37,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:31:37,080 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:31:37,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 11:31:37,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:31:37,282 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:31:37,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:31:37,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1660556692, now seen corresponding path program 2 times [2024-11-18 11:31:37,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:31:37,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308776626] [2024-11-18 11:31:37,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 11:31:37,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:31:37,325 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 11:31:37,325 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 11:31:37,637 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:37,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:31:37,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308776626] [2024-11-18 11:31:37,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308776626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 11:31:37,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860768103] [2024-11-18 11:31:37,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 11:31:37,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:31:37,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:31:37,641 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 11:31:37,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 11:31:37,791 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 11:31:37,791 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 11:31:37,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-18 11:31:37,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:31:37,897 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:37,898 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 11:31:38,186 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:38,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860768103] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 11:31:38,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 11:31:38,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-11-18 11:31:38,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178054547] [2024-11-18 11:31:38,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 11:31:38,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-18 11:31:38,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:31:38,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-18 11:31:38,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-18 11:31:38,192 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand has 25 states, 25 states have (on average 3.8) internal successors, (95), 25 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:38,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:31:38,302 INFO L93 Difference]: Finished difference Result 105 states and 118 transitions. [2024-11-18 11:31:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-18 11:31:38,302 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.8) internal successors, (95), 25 states have internal predecessors, (95), 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 48 [2024-11-18 11:31:38,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:31:38,303 INFO L225 Difference]: With dead ends: 105 [2024-11-18 11:31:38,304 INFO L226 Difference]: Without dead ends: 98 [2024-11-18 11:31:38,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-18 11:31:38,305 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 11:31:38,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 104 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 11:31:38,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-18 11:31:38,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-18 11:31:38,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.0206185567010309) internal successors, (99), 97 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:38,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2024-11-18 11:31:38,321 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 48 [2024-11-18 11:31:38,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:31:38,321 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2024-11-18 11:31:38,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.8) internal successors, (95), 25 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:38,322 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2024-11-18 11:31:38,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 11:31:38,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:31:38,324 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:31:38,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-18 11:31:38,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:31:38,525 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:31:38,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:31:38,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1914010600, now seen corresponding path program 3 times [2024-11-18 11:31:38,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:31:38,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360415523] [2024-11-18 11:31:38,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 11:31:38,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:31:38,600 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2024-11-18 11:31:38,600 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 11:31:39,316 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:39,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:31:39,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360415523] [2024-11-18 11:31:39,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360415523] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 11:31:39,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332939826] [2024-11-18 11:31:39,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 11:31:39,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:31:39,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:31:39,320 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 11:31:39,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 11:31:39,580 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2024-11-18 11:31:39,580 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 11:31:39,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-18 11:31:39,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:31:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:39,756 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 11:31:40,643 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:40,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332939826] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 11:31:40,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 11:31:40,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2024-11-18 11:31:40,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240510396] [2024-11-18 11:31:40,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 11:31:40,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-18 11:31:40,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:31:40,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-18 11:31:40,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2024-11-18 11:31:40,651 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand has 49 states, 49 states have (on average 3.8979591836734695) internal successors, (191), 49 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:40,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:31:40,821 INFO L93 Difference]: Finished difference Result 201 states and 226 transitions. [2024-11-18 11:31:40,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-18 11:31:40,822 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.8979591836734695) internal successors, (191), 49 states have internal predecessors, (191), 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 96 [2024-11-18 11:31:40,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:31:40,825 INFO L225 Difference]: With dead ends: 201 [2024-11-18 11:31:40,825 INFO L226 Difference]: Without dead ends: 194 [2024-11-18 11:31:40,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2024-11-18 11:31:40,829 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 11:31:40,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 128 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 11:31:40,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-18 11:31:40,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-18 11:31:40,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 1.0103626943005182) internal successors, (195), 193 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:40,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 195 transitions. [2024-11-18 11:31:40,848 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 195 transitions. Word has length 96 [2024-11-18 11:31:40,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:31:40,848 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 195 transitions. [2024-11-18 11:31:40,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.8979591836734695) internal successors, (191), 49 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:40,849 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 195 transitions. [2024-11-18 11:31:40,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-18 11:31:40,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:31:40,851 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:31:40,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 11:31:41,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:31:41,052 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:31:41,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:31:41,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1650204528, now seen corresponding path program 4 times [2024-11-18 11:31:41,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:31:41,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935921968] [2024-11-18 11:31:41,052 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-18 11:31:41,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:31:41,174 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-18 11:31:41,175 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 11:31:43,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:43,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:31:43,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935921968] [2024-11-18 11:31:43,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935921968] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 11:31:43,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236317351] [2024-11-18 11:31:43,288 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-18 11:31:43,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:31:43,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:31:43,291 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 11:31:43,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 11:31:43,687 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-18 11:31:43,687 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 11:31:43,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-18 11:31:43,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:31:43,973 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:43,973 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 11:31:46,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:46,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236317351] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 11:31:46,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 11:31:46,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 96 [2024-11-18 11:31:46,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273800065] [2024-11-18 11:31:46,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 11:31:46,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-18 11:31:46,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:31:46,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-18 11:31:46,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-11-18 11:31:46,773 INFO L87 Difference]: Start difference. First operand 194 states and 195 transitions. Second operand has 96 states, 96 states have (on average 3.9375) internal successors, (378), 96 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:47,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:31:47,123 INFO L93 Difference]: Finished difference Result 393 states and 442 transitions. [2024-11-18 11:31:47,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-18 11:31:47,123 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 3.9375) internal successors, (378), 96 states have internal predecessors, (378), 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 192 [2024-11-18 11:31:47,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:31:47,126 INFO L225 Difference]: With dead ends: 393 [2024-11-18 11:31:47,126 INFO L226 Difference]: Without dead ends: 386 [2024-11-18 11:31:47,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-11-18 11:31:47,130 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 11:31:47,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 246 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 11:31:47,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-18 11:31:47,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2024-11-18 11:31:47,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 385 states have (on average 1.0051948051948052) internal successors, (387), 385 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:47,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 387 transitions. [2024-11-18 11:31:47,146 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 387 transitions. Word has length 192 [2024-11-18 11:31:47,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:31:47,147 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 387 transitions. [2024-11-18 11:31:47,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 3.9375) internal successors, (378), 96 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:31:47,148 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 387 transitions. [2024-11-18 11:31:47,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-18 11:31:47,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:31:47,154 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:31:47,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-18 11:31:47,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:31:47,355 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:31:47,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:31:47,355 INFO L85 PathProgramCache]: Analyzing trace with hash 215943648, now seen corresponding path program 5 times [2024-11-18 11:31:47,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:31:47,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395490576] [2024-11-18 11:31:47,356 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-18 11:31:47,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:31:47,826 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 95 check-sat command(s) [2024-11-18 11:31:47,826 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 11:31:54,019 INFO L134 CoverageAnalysis]: Checked inductivity of 17578 backedges. 0 proven. 17578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:54,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:31:54,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395490576] [2024-11-18 11:31:54,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395490576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 11:31:54,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578696733] [2024-11-18 11:31:54,020 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-18 11:31:54,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:31:54,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:31:54,021 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 11:31:54,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 11:31:54,909 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 95 check-sat command(s) [2024-11-18 11:31:54,910 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 11:31:54,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 3084 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-18 11:31:54,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:31:55,336 INFO L134 CoverageAnalysis]: Checked inductivity of 17578 backedges. 0 proven. 17578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:31:55,336 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 11:32:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 17578 backedges. 0 proven. 17578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:32:04,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578696733] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 11:32:04,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 11:32:04,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 192 [2024-11-18 11:32:04,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360447622] [2024-11-18 11:32:04,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 11:32:04,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-11-18 11:32:04,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:32:04,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-11-18 11:32:04,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-11-18 11:32:04,296 INFO L87 Difference]: Start difference. First operand 386 states and 387 transitions. Second operand has 192 states, 192 states have (on average 3.96875) internal successors, (762), 192 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:32:05,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:32:05,100 INFO L93 Difference]: Finished difference Result 777 states and 874 transitions. [2024-11-18 11:32:05,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-11-18 11:32:05,101 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 192 states have (on average 3.96875) internal successors, (762), 192 states have internal predecessors, (762), 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 384 [2024-11-18 11:32:05,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:32:05,104 INFO L225 Difference]: With dead ends: 777 [2024-11-18 11:32:05,104 INFO L226 Difference]: Without dead ends: 770 [2024-11-18 11:32:05,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 863 GetRequests, 673 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-11-18 11:32:05,108 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 11:32:05,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 414 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 11:32:05,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2024-11-18 11:32:05,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2024-11-18 11:32:05,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 769 states have (on average 1.0026007802340702) internal successors, (771), 769 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:32:05,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 771 transitions. [2024-11-18 11:32:05,133 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 771 transitions. Word has length 384 [2024-11-18 11:32:05,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:32:05,133 INFO L471 AbstractCegarLoop]: Abstraction has 770 states and 771 transitions. [2024-11-18 11:32:05,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 192 states have (on average 3.96875) internal successors, (762), 192 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:32:05,134 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 771 transitions. [2024-11-18 11:32:05,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2024-11-18 11:32:05,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:32:05,151 INFO L215 NwaCegarLoop]: trace histogram [190, 190, 190, 190, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:32:05,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-18 11:32:05,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:32:05,352 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:32:05,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:32:05,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1640946816, now seen corresponding path program 6 times [2024-11-18 11:32:05,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:32:05,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20923816] [2024-11-18 11:32:05,353 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-18 11:32:05,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:32:05,852 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 191 check-sat command(s) [2024-11-18 11:32:05,852 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 11:32:29,633 INFO L134 CoverageAnalysis]: Checked inductivity of 72010 backedges. 0 proven. 72010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:32:29,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:32:29,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20923816] [2024-11-18 11:32:29,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20923816] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 11:32:29,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882726091] [2024-11-18 11:32:29,634 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-18 11:32:29,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:32:29,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:32:29,636 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 11:32:29,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-18 11:32:32,058 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 191 check-sat command(s) [2024-11-18 11:32:32,059 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 11:32:32,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 6156 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-11-18 11:32:32,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:32:32,895 INFO L134 CoverageAnalysis]: Checked inductivity of 72010 backedges. 0 proven. 72010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:32:32,895 INFO L311 TraceCheckSpWp]: Computing backward predicates...