./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label34.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/eca-rers2012/Problem10_label34.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 550f3a62df7d5eada5d2aa8dd32299382207e40f85198cb35440276faa9cf7d3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:48:02,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:48:02,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:48:02,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:48:02,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:48:02,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:48:02,986 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:48:02,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:48:02,987 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:48:02,990 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:48:02,991 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:48:02,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:48:02,992 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:48:02,992 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:48:02,993 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:48:02,993 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:48:02,993 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:48:02,995 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:48:02,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:48:02,996 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:48:02,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:48:02,997 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:48:02,997 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:48:02,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:48:02,997 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:48:02,998 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:48:02,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:48:02,998 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:48:02,999 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:48:02,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:48:02,999 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:48:02,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:48:03,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:48:03,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:48:03,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:48:03,001 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:48:03,002 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:48:03,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:48:03,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:48:03,003 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:48:03,003 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:48:03,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:48:03,004 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 550f3a62df7d5eada5d2aa8dd32299382207e40f85198cb35440276faa9cf7d3 [2024-11-16 03:48:03,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:48:03,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:48:03,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:48:03,322 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:48:03,324 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:48:03,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label34.c [2024-11-16 03:48:04,876 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:48:05,128 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:48:05,133 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label34.c [2024-11-16 03:48:05,159 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e136d08c8/16589953f1c04a009762c23945df5248/FLAG170ad5f72 [2024-11-16 03:48:05,187 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e136d08c8/16589953f1c04a009762c23945df5248 [2024-11-16 03:48:05,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:48:05,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:48:05,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:48:05,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:48:05,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:48:05,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14ffbbbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05, skipping insertion in model container [2024-11-16 03:48:05,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,252 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:48:05,508 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/eca-rers2012/Problem10_label34.c[7166,7179] [2024-11-16 03:48:05,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:48:05,673 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:48:05,703 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/eca-rers2012/Problem10_label34.c[7166,7179] [2024-11-16 03:48:05,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:48:05,791 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:48:05,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05 WrapperNode [2024-11-16 03:48:05,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:48:05,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:48:05,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:48:05,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:48:05,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,872 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2024-11-16 03:48:05,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:48:05,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:48:05,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:48:05,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:48:05,884 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,890 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,915 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]. [2024-11-16 03:48:05,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,938 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,962 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,971 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:48:05,972 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:48:05,973 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:48:05,973 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:48:05,974 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05" (1/1) ... [2024-11-16 03:48:05,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:48:05,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:48:06,009 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) [2024-11-16 03:48:06,012 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 [2024-11-16 03:48:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:48:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:48:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:48:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:48:06,143 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:48:06,145 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:48:07,232 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-16 03:48:07,232 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:48:07,254 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:48:07,256 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:48:07,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:07 BoogieIcfgContainer [2024-11-16 03:48:07,257 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:48:07,259 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:48:07,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:48:07,263 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:48:07,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:48:05" (1/3) ... [2024-11-16 03:48:07,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76bf1657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:48:07, skipping insertion in model container [2024-11-16 03:48:07,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:05" (2/3) ... [2024-11-16 03:48:07,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76bf1657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:48:07, skipping insertion in model container [2024-11-16 03:48:07,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:07" (3/3) ... [2024-11-16 03:48:07,268 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label34.c [2024-11-16 03:48:07,288 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:48:07,289 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:48:07,358 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:48:07,364 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;@398ecc17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:48:07,364 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:48:07,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 207 states have (on average 1.6763285024154588) internal successors, (347), 208 states have internal predecessors, (347), 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) [2024-11-16 03:48:07,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-16 03:48:07,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:07,382 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:07,383 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:07,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:07,389 INFO L85 PathProgramCache]: Analyzing trace with hash -744544788, now seen corresponding path program 1 times [2024-11-16 03:48:07,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:07,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512629036] [2024-11-16 03:48:07,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:07,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:07,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:07,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:07,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512629036] [2024-11-16 03:48:08,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512629036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:08,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:08,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:08,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805295111] [2024-11-16 03:48:08,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:08,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:48:08,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:08,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:48:08,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:48:08,043 INFO L87 Difference]: Start difference. First operand has 209 states, 207 states have (on average 1.6763285024154588) internal successors, (347), 208 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-16 03:48:09,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:09,371 INFO L93 Difference]: Finished difference Result 703 states and 1255 transitions. [2024-11-16 03:48:09,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:48:09,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2024-11-16 03:48:09,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:09,387 INFO L225 Difference]: With dead ends: 703 [2024-11-16 03:48:09,388 INFO L226 Difference]: Without dead ends: 425 [2024-11-16 03:48:09,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:48:09,395 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 428 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:09,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 50 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 03:48:09,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-16 03:48:09,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2024-11-16 03:48:09,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 424 states have (on average 1.3797169811320755) internal successors, (585), 424 states have internal predecessors, (585), 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) [2024-11-16 03:48:09,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 585 transitions. [2024-11-16 03:48:09,459 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 585 transitions. Word has length 65 [2024-11-16 03:48:09,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:09,460 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 585 transitions. [2024-11-16 03:48:09,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-16 03:48:09,460 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 585 transitions. [2024-11-16 03:48:09,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 03:48:09,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:09,468 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:09,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:48:09,469 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:09,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:09,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1880291955, now seen corresponding path program 1 times [2024-11-16 03:48:09,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:09,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4121428] [2024-11-16 03:48:09,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:09,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:10,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:10,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4121428] [2024-11-16 03:48:10,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4121428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:10,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:10,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:10,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360004321] [2024-11-16 03:48:10,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:10,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:48:10,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:10,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:48:10,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:48:10,085 INFO L87 Difference]: Start difference. First operand 425 states and 585 transitions. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 3 states have internal predecessors, (184), 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) [2024-11-16 03:48:10,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:10,625 INFO L93 Difference]: Finished difference Result 708 states and 1018 transitions. [2024-11-16 03:48:10,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:48:10,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 3 states have internal predecessors, (184), 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 184 [2024-11-16 03:48:10,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:10,627 INFO L225 Difference]: With dead ends: 708 [2024-11-16 03:48:10,627 INFO L226 Difference]: Without dead ends: 425 [2024-11-16 03:48:10,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:48:10,629 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 87 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:10,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 93 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:48:10,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-16 03:48:10,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2024-11-16 03:48:10,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 424 states have (on average 1.3679245283018868) internal successors, (580), 424 states have internal predecessors, (580), 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) [2024-11-16 03:48:10,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 580 transitions. [2024-11-16 03:48:10,648 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 580 transitions. Word has length 184 [2024-11-16 03:48:10,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:10,649 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 580 transitions. [2024-11-16 03:48:10,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 3 states have internal predecessors, (184), 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) [2024-11-16 03:48:10,649 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 580 transitions. [2024-11-16 03:48:10,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-16 03:48:10,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:10,653 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:10,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:48:10,653 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:10,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:10,654 INFO L85 PathProgramCache]: Analyzing trace with hash -214102102, now seen corresponding path program 1 times [2024-11-16 03:48:10,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:10,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452584590] [2024-11-16 03:48:10,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:10,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:11,063 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:11,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:11,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452584590] [2024-11-16 03:48:11,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452584590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:11,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:11,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:11,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086792829] [2024-11-16 03:48:11,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:11,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:11,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:11,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:11,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:11,070 INFO L87 Difference]: Start difference. First operand 425 states and 580 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2024-11-16 03:48:11,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:11,590 INFO L93 Difference]: Finished difference Result 848 states and 1228 transitions. [2024-11-16 03:48:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:11,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 211 [2024-11-16 03:48:11,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:11,599 INFO L225 Difference]: With dead ends: 848 [2024-11-16 03:48:11,599 INFO L226 Difference]: Without dead ends: 565 [2024-11-16 03:48:11,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:11,602 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 88 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:11,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 22 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:48:11,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-16 03:48:11,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2024-11-16 03:48:11,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 564 states have (on average 1.374113475177305) internal successors, (775), 564 states have internal predecessors, (775), 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) [2024-11-16 03:48:11,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 775 transitions. [2024-11-16 03:48:11,652 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 775 transitions. Word has length 211 [2024-11-16 03:48:11,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:11,653 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 775 transitions. [2024-11-16 03:48:11,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2024-11-16 03:48:11,653 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 775 transitions. [2024-11-16 03:48:11,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-16 03:48:11,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:11,662 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:11,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:48:11,663 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:11,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:11,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1012492242, now seen corresponding path program 1 times [2024-11-16 03:48:11,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:11,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200071004] [2024-11-16 03:48:11,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:11,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:11,894 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:11,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:11,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200071004] [2024-11-16 03:48:11,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200071004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:11,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:11,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:11,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77298266] [2024-11-16 03:48:11,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:11,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:11,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:11,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:11,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:11,901 INFO L87 Difference]: Start difference. First operand 565 states and 775 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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) [2024-11-16 03:48:12,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:12,424 INFO L93 Difference]: Finished difference Result 1268 states and 1814 transitions. [2024-11-16 03:48:12,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:12,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 227 [2024-11-16 03:48:12,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:12,430 INFO L225 Difference]: With dead ends: 1268 [2024-11-16 03:48:12,430 INFO L226 Difference]: Without dead ends: 845 [2024-11-16 03:48:12,431 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 [2024-11-16 03:48:12,436 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 50 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:12,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 220 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:48:12,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-16 03:48:12,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 705. [2024-11-16 03:48:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 704 states have (on average 1.3139204545454546) internal successors, (925), 704 states have internal predecessors, (925), 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) [2024-11-16 03:48:12,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 925 transitions. [2024-11-16 03:48:12,462 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 925 transitions. Word has length 227 [2024-11-16 03:48:12,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:12,462 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 925 transitions. [2024-11-16 03:48:12,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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) [2024-11-16 03:48:12,463 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 925 transitions. [2024-11-16 03:48:12,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-16 03:48:12,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:12,467 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:12,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:48:12,468 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:12,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:12,468 INFO L85 PathProgramCache]: Analyzing trace with hash 206038189, now seen corresponding path program 1 times [2024-11-16 03:48:12,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:12,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955458938] [2024-11-16 03:48:12,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:12,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:13,066 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 03:48:13,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:13,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955458938] [2024-11-16 03:48:13,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955458938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:13,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:13,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 03:48:13,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663459389] [2024-11-16 03:48:13,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:13,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 03:48:13,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:13,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 03:48:13,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:48:13,070 INFO L87 Difference]: Start difference. First operand 705 states and 925 transitions. Second operand has 7 states, 7 states have (on average 36.42857142857143) internal successors, (255), 6 states have internal predecessors, (255), 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) [2024-11-16 03:48:13,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:13,610 INFO L93 Difference]: Finished difference Result 1324 states and 1759 transitions. [2024-11-16 03:48:13,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 03:48:13,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 36.42857142857143) internal successors, (255), 6 states have internal predecessors, (255), 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 260 [2024-11-16 03:48:13,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:13,614 INFO L225 Difference]: With dead ends: 1324 [2024-11-16 03:48:13,615 INFO L226 Difference]: Without dead ends: 705 [2024-11-16 03:48:13,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:48:13,619 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 143 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:13,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 34 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:48:13,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-16 03:48:13,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2024-11-16 03:48:13,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 704 states have (on average 1.3082386363636365) internal successors, (921), 704 states have internal predecessors, (921), 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) [2024-11-16 03:48:13,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 921 transitions. [2024-11-16 03:48:13,638 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 921 transitions. Word has length 260 [2024-11-16 03:48:13,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:13,638 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 921 transitions. [2024-11-16 03:48:13,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.42857142857143) internal successors, (255), 6 states have internal predecessors, (255), 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) [2024-11-16 03:48:13,640 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 921 transitions. [2024-11-16 03:48:13,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-16 03:48:13,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:13,643 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:13,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:48:13,644 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:13,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:13,645 INFO L85 PathProgramCache]: Analyzing trace with hash 48896979, now seen corresponding path program 1 times [2024-11-16 03:48:13,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:13,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750994665] [2024-11-16 03:48:13,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:13,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:13,940 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:13,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:13,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750994665] [2024-11-16 03:48:13,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750994665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:13,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:13,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:13,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750720289] [2024-11-16 03:48:13,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:13,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:13,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:13,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:13,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:13,943 INFO L87 Difference]: Start difference. First operand 705 states and 921 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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) [2024-11-16 03:48:14,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:14,407 INFO L93 Difference]: Finished difference Result 1405 states and 1898 transitions. [2024-11-16 03:48:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:14,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 296 [2024-11-16 03:48:14,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:14,410 INFO L225 Difference]: With dead ends: 1405 [2024-11-16 03:48:14,410 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:48:14,412 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 [2024-11-16 03:48:14,415 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 35 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:14,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 190 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:48:14,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:48:14,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:48:14,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:14,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:48:14,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 296 [2024-11-16 03:48:14,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:14,419 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:48:14,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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) [2024-11-16 03:48:14,419 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:48:14,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:48:14,423 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:48:14,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:48:14,428 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-16 03:48:14,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:48:14,495 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:48:14,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:48:14 BoogieIcfgContainer [2024-11-16 03:48:14,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:48:14,514 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:48:14,514 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:48:14,514 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:48:14,515 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:07" (3/4) ... [2024-11-16 03:48:14,517 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:48:14,536 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 03:48:14,537 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 03:48:14,537 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:48:14,541 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:48:14,708 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:48:14,709 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:48:14,709 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:48:14,710 INFO L158 Benchmark]: Toolchain (without parser) took 9518.93ms. Allocated memory was 159.4MB in the beginning and 272.6MB in the end (delta: 113.2MB). Free memory was 90.0MB in the beginning and 232.5MB in the end (delta: -142.5MB). Peak memory consumption was 130.2MB. Max. memory is 16.1GB. [2024-11-16 03:48:14,710 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:48:14,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.36ms. Allocated memory is still 159.4MB. Free memory was 89.8MB in the beginning and 114.6MB in the end (delta: -24.8MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2024-11-16 03:48:14,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.12ms. Allocated memory is still 159.4MB. Free memory was 114.6MB in the beginning and 106.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-16 03:48:14,711 INFO L158 Benchmark]: Boogie Preprocessor took 97.98ms. Allocated memory is still 159.4MB. Free memory was 106.2MB in the beginning and 96.5MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-16 03:48:14,711 INFO L158 Benchmark]: IcfgBuilder took 1285.37ms. Allocated memory is still 159.4MB. Free memory was 96.5MB in the beginning and 82.0MB in the end (delta: 14.5MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2024-11-16 03:48:14,711 INFO L158 Benchmark]: TraceAbstraction took 7254.02ms. Allocated memory was 159.4MB in the beginning and 272.6MB in the end (delta: 113.2MB). Free memory was 81.7MB in the beginning and 85.1MB in the end (delta: -3.5MB). Peak memory consumption was 109.8MB. Max. memory is 16.1GB. [2024-11-16 03:48:14,711 INFO L158 Benchmark]: Witness Printer took 195.24ms. Allocated memory is still 272.6MB. Free memory was 85.1MB in the beginning and 232.5MB in the end (delta: -147.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-16 03:48:14,713 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.36ms. Allocated memory is still 159.4MB. Free memory was 89.8MB in the beginning and 114.6MB in the end (delta: -24.8MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.12ms. Allocated memory is still 159.4MB. Free memory was 114.6MB in the beginning and 106.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.98ms. Allocated memory is still 159.4MB. Free memory was 106.2MB in the beginning and 96.5MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * IcfgBuilder took 1285.37ms. Allocated memory is still 159.4MB. Free memory was 96.5MB in the beginning and 82.0MB in the end (delta: 14.5MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7254.02ms. Allocated memory was 159.4MB in the beginning and 272.6MB in the end (delta: 113.2MB). Free memory was 81.7MB in the beginning and 85.1MB in the end (delta: -3.5MB). Peak memory consumption was 109.8MB. Max. memory is 16.1GB. * Witness Printer took 195.24ms. Allocated memory is still 272.6MB. Free memory was 85.1MB in the beginning and 232.5MB in the end (delta: -147.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 203]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 209 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 831 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 831 mSDsluCounter, 609 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 519 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3039 IncrementalHoareTripleChecker+Invalid, 3558 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 519 mSolverCounterUnsat, 540 mSDtfsCounter, 3039 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=705occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 140 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1243 NumberOfCodeBlocks, 1243 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1237 ConstructedInterpolants, 0 QuantifiedInterpolants, 4946 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 871/871 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:48:14,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE