./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label58.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem16_label58.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 e5281f844eabff773c30466496a887d3522b0ddff233ccde960335a044003122 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 11:36:58,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:36:58,148 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:36:58,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:36:58,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:36:58,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:36:58,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:36:58,180 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:36:58,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:36:58,182 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:36:58,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:36:58,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:36:58,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:36:58,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:36:58,185 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:36:58,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:36:58,186 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:36:58,186 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:36:58,186 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:36:58,186 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:36:58,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:36:58,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:36:58,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:36:58,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:36:58,191 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:36:58,192 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:36:58,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:36:58,192 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:36:58,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:36:58,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:36:58,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:36:58,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:36:58,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:36:58,195 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:36:58,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:36:58,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:36:58,196 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:36:58,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:36:58,196 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:36:58,196 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:36:58,197 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:36:58,197 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:36:58,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5281f844eabff773c30466496a887d3522b0ddff233ccde960335a044003122 [2024-11-08 11:36:58,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:36:58,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:36:58,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:36:58,470 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:36:58,470 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:36:58,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label58.c [2024-11-08 11:37:00,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:37:00,323 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:37:00,324 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label58.c [2024-11-08 11:37:00,353 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765c97157/1be54c9baa3641a1a1df95a7a37bf62b/FLAG61738d466 [2024-11-08 11:37:00,369 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765c97157/1be54c9baa3641a1a1df95a7a37bf62b [2024-11-08 11:37:00,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:37:00,373 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:37:00,375 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:37:00,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:37:00,381 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:37:00,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:37:00" (1/1) ... [2024-11-08 11:37:00,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d924cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:00, skipping insertion in model container [2024-11-08 11:37:00,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:37:00" (1/1) ... [2024-11-08 11:37:00,450 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:37:00,677 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/Problem16_label58.c[5405,5418] [2024-11-08 11:37:01,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:37:01,076 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:37:01,107 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/Problem16_label58.c[5405,5418] [2024-11-08 11:37:01,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:37:01,286 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:37:01,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01 WrapperNode [2024-11-08 11:37:01,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:37:01,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:37:01,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:37:01,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:37:01,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01" (1/1) ... [2024-11-08 11:37:01,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01" (1/1) ... [2024-11-08 11:37:01,431 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1770 [2024-11-08 11:37:01,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:37:01,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:37:01,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:37:01,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:37:01,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01" (1/1) ... [2024-11-08 11:37:01,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01" (1/1) ... [2024-11-08 11:37:01,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01" (1/1) ... [2024-11-08 11:37:01,519 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 11:37:01,519 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01" (1/1) ... [2024-11-08 11:37:01,520 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01" (1/1) ... [2024-11-08 11:37:01,570 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01" (1/1) ... [2024-11-08 11:37:01,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01" (1/1) ... [2024-11-08 11:37:01,618 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01" (1/1) ... [2024-11-08 11:37:01,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01" (1/1) ... [2024-11-08 11:37:01,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:37:01,653 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:37:01,653 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:37:01,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:37:01,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01" (1/1) ... [2024-11-08 11:37:01,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:37:01,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:37:01,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 11:37:01,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 11:37:01,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:37:01,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:37:01,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:37:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:37:01,803 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:37:01,804 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:37:03,962 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-08 11:37:03,962 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:37:03,998 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:37:03,998 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 11:37:03,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:37:03 BoogieIcfgContainer [2024-11-08 11:37:03,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:37:04,002 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:37:04,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:37:04,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:37:04,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:37:00" (1/3) ... [2024-11-08 11:37:04,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e164577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:37:04, skipping insertion in model container [2024-11-08 11:37:04,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:37:01" (2/3) ... [2024-11-08 11:37:04,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e164577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:37:04, skipping insertion in model container [2024-11-08 11:37:04,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:37:03" (3/3) ... [2024-11-08 11:37:04,009 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label58.c [2024-11-08 11:37:04,027 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:37:04,027 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:37:04,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:37:04,121 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;@225be616, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:37:04,122 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:37:04,129 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 11:37:04,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:04,141 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] [2024-11-08 11:37:04,141 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:04,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:04,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2024-11-08 11:37:04,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:04,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768327296] [2024-11-08 11:37:04,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:04,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:04,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:37:04,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:04,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768327296] [2024-11-08 11:37:04,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768327296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:04,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:37:04,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:37:04,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271178853] [2024-11-08 11:37:04,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:04,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:37:04,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:04,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:37:04,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:37:04,585 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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 17.0) internal successors, (51), 2 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) [2024-11-08 11:37:06,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:06,350 INFO L93 Difference]: Finished difference Result 1137 states and 2118 transitions. [2024-11-08 11:37:06,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:37:06,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 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) Word has length 51 [2024-11-08 11:37:06,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:06,367 INFO L225 Difference]: With dead ends: 1137 [2024-11-08 11:37:06,368 INFO L226 Difference]: Without dead ends: 662 [2024-11-08 11:37:06,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:37:06,375 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 333 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:06,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 114 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 11:37:06,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-08 11:37:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-11-08 11:37:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.7004538577912254) internal successors, (1124), 661 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:06,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1124 transitions. [2024-11-08 11:37:06,442 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1124 transitions. Word has length 51 [2024-11-08 11:37:06,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:06,442 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1124 transitions. [2024-11-08 11:37:06,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 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) [2024-11-08 11:37:06,443 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1124 transitions. [2024-11-08 11:37:06,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 11:37:06,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:06,448 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:37:06,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:37:06,449 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:06,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:06,449 INFO L85 PathProgramCache]: Analyzing trace with hash -263576959, now seen corresponding path program 1 times [2024-11-08 11:37:06,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:06,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804456037] [2024-11-08 11:37:06,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:06,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:06,683 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:37:06,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:06,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804456037] [2024-11-08 11:37:06,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804456037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:06,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:37:06,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:37:06,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768716068] [2024-11-08 11:37:06,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:06,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:37:06,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:06,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:37:06,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:37:06,688 INFO L87 Difference]: Start difference. First operand 662 states and 1124 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:08,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:08,081 INFO L93 Difference]: Finished difference Result 1980 states and 3367 transitions. [2024-11-08 11:37:08,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:37:08,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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 117 [2024-11-08 11:37:08,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:08,089 INFO L225 Difference]: With dead ends: 1980 [2024-11-08 11:37:08,089 INFO L226 Difference]: Without dead ends: 1320 [2024-11-08 11:37:08,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:37:08,097 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 343 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:08,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 77 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:37:08,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-11-08 11:37:08,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2024-11-08 11:37:08,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.620166793025019) internal successors, (2137), 1319 states have internal predecessors, (2137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:08,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2137 transitions. [2024-11-08 11:37:08,160 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 2137 transitions. Word has length 117 [2024-11-08 11:37:08,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:08,161 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 2137 transitions. [2024-11-08 11:37:08,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:08,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 2137 transitions. [2024-11-08 11:37:08,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 11:37:08,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:08,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:37:08,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:37:08,169 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:08,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:08,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1335055425, now seen corresponding path program 1 times [2024-11-08 11:37:08,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:08,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382124964] [2024-11-08 11:37:08,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:08,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:08,410 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:37:08,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:08,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382124964] [2024-11-08 11:37:08,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382124964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:08,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:37:08,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:37:08,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330129954] [2024-11-08 11:37:08,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:08,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:37:08,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:08,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:37:08,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:37:08,414 INFO L87 Difference]: Start difference. First operand 1320 states and 2137 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:09,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:09,678 INFO L93 Difference]: Finished difference Result 3296 states and 5285 transitions. [2024-11-08 11:37:09,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:37:09,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 118 [2024-11-08 11:37:09,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:09,686 INFO L225 Difference]: With dead ends: 3296 [2024-11-08 11:37:09,687 INFO L226 Difference]: Without dead ends: 1978 [2024-11-08 11:37:09,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:37:09,690 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 381 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:09,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 155 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:37:09,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2024-11-08 11:37:09,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1978. [2024-11-08 11:37:09,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1977 states have (on average 1.3323216995447649) internal successors, (2634), 1977 states have internal predecessors, (2634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:09,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2634 transitions. [2024-11-08 11:37:09,724 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2634 transitions. Word has length 118 [2024-11-08 11:37:09,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:09,724 INFO L471 AbstractCegarLoop]: Abstraction has 1978 states and 2634 transitions. [2024-11-08 11:37:09,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:09,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2634 transitions. [2024-11-08 11:37:09,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-08 11:37:09,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:09,728 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, 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, 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] [2024-11-08 11:37:09,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:37:09,728 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:09,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:09,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1566896025, now seen corresponding path program 1 times [2024-11-08 11:37:09,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:09,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995105569] [2024-11-08 11:37:09,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:09,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:10,001 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:37:10,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:10,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995105569] [2024-11-08 11:37:10,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995105569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:10,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:37:10,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:37:10,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757872566] [2024-11-08 11:37:10,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:10,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:37:10,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:10,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:37:10,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:37:10,009 INFO L87 Difference]: Start difference. First operand 1978 states and 2634 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:11,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:11,356 INFO L93 Difference]: Finished difference Result 5928 states and 7897 transitions. [2024-11-08 11:37:11,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:37:11,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 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 210 [2024-11-08 11:37:11,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:11,369 INFO L225 Difference]: With dead ends: 5928 [2024-11-08 11:37:11,369 INFO L226 Difference]: Without dead ends: 3952 [2024-11-08 11:37:11,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:37:11,372 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 181 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:11,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 259 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:37:11,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2024-11-08 11:37:11,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952. [2024-11-08 11:37:11,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3951 states have (on average 1.216400911161731) internal successors, (4806), 3951 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:11,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4806 transitions. [2024-11-08 11:37:11,433 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 4806 transitions. Word has length 210 [2024-11-08 11:37:11,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:11,434 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 4806 transitions. [2024-11-08 11:37:11,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:11,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 4806 transitions. [2024-11-08 11:37:11,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-08 11:37:11,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:11,439 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:37:11,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 11:37:11,440 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:11,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:11,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1283372126, now seen corresponding path program 1 times [2024-11-08 11:37:11,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:11,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642196226] [2024-11-08 11:37:11,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:11,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:12,106 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:37:12,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:12,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642196226] [2024-11-08 11:37:12,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642196226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:12,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:37:12,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:37:12,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889192544] [2024-11-08 11:37:12,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:12,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:37:12,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:12,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:37:12,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:37:12,110 INFO L87 Difference]: Start difference. First operand 3952 states and 4806 transitions. Second operand has 4 states, 4 states have (on average 74.0) 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) [2024-11-08 11:37:13,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:13,331 INFO L93 Difference]: Finished difference Result 8231 states and 9951 transitions. [2024-11-08 11:37:13,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:37:13,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.0) 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 [2024-11-08 11:37:13,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:13,346 INFO L225 Difference]: With dead ends: 8231 [2024-11-08 11:37:13,346 INFO L226 Difference]: Without dead ends: 4281 [2024-11-08 11:37:13,352 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 [2024-11-08 11:37:13,353 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 127 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:13,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 322 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:37:13,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4281 states. [2024-11-08 11:37:13,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 4281. [2024-11-08 11:37:13,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4281 states, 4280 states have (on average 1.2011682242990653) internal successors, (5141), 4280 states have internal predecessors, (5141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:13,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4281 states to 4281 states and 5141 transitions. [2024-11-08 11:37:13,442 INFO L78 Accepts]: Start accepts. Automaton has 4281 states and 5141 transitions. Word has length 296 [2024-11-08 11:37:13,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:13,442 INFO L471 AbstractCegarLoop]: Abstraction has 4281 states and 5141 transitions. [2024-11-08 11:37:13,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) 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) [2024-11-08 11:37:13,444 INFO L276 IsEmpty]: Start isEmpty. Operand 4281 states and 5141 transitions. [2024-11-08 11:37:13,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2024-11-08 11:37:13,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:13,449 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, 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, 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, 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] [2024-11-08 11:37:13,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 11:37:13,450 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:13,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:13,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1637520684, now seen corresponding path program 1 times [2024-11-08 11:37:13,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:13,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299260883] [2024-11-08 11:37:13,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:13,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:14,078 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:37:14,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:14,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299260883] [2024-11-08 11:37:14,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299260883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:14,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:37:14,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 11:37:14,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868503930] [2024-11-08 11:37:14,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:14,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 11:37:14,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:14,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 11:37:14,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 11:37:14,084 INFO L87 Difference]: Start difference. First operand 4281 states and 5141 transitions. Second operand has 7 states, 7 states have (on average 54.714285714285715) internal successors, (383), 6 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:15,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:15,736 INFO L93 Difference]: Finished difference Result 8090 states and 9792 transitions. [2024-11-08 11:37:15,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 11:37:15,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 54.714285714285715) internal successors, (383), 6 states have internal predecessors, (383), 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 383 [2024-11-08 11:37:15,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:15,750 INFO L225 Difference]: With dead ends: 8090 [2024-11-08 11:37:15,750 INFO L226 Difference]: Without dead ends: 3952 [2024-11-08 11:37:15,755 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 [2024-11-08 11:37:15,757 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 288 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 2450 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:15,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 302 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2450 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:37:15,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2024-11-08 11:37:15,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952. [2024-11-08 11:37:15,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3951 states have (on average 1.0802328524424196) internal successors, (4268), 3951 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:15,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4268 transitions. [2024-11-08 11:37:15,818 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 4268 transitions. Word has length 383 [2024-11-08 11:37:15,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:15,819 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 4268 transitions. [2024-11-08 11:37:15,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 54.714285714285715) internal successors, (383), 6 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:15,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 4268 transitions. [2024-11-08 11:37:15,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-08 11:37:15,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:15,826 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:37:15,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 11:37:15,826 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:15,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:15,827 INFO L85 PathProgramCache]: Analyzing trace with hash 908452164, now seen corresponding path program 1 times [2024-11-08 11:37:15,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:15,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017337433] [2024-11-08 11:37:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:15,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:16,093 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-08 11:37:16,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:16,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017337433] [2024-11-08 11:37:16,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017337433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:16,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:37:16,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:37:16,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435479790] [2024-11-08 11:37:16,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:16,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:37:16,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:16,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:37:16,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:37:16,097 INFO L87 Difference]: Start difference. First operand 3952 states and 4268 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) [2024-11-08 11:37:17,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:17,192 INFO L93 Difference]: Finished difference Result 9547 states and 10414 transitions. [2024-11-08 11:37:17,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:37:17,193 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 390 [2024-11-08 11:37:17,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:17,211 INFO L225 Difference]: With dead ends: 9547 [2024-11-08 11:37:17,211 INFO L226 Difference]: Without dead ends: 5926 [2024-11-08 11:37:17,216 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 [2024-11-08 11:37:17,217 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 298 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:17,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 40 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:37:17,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5926 states. [2024-11-08 11:37:17,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 5926. [2024-11-08 11:37:17,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5925 states have (on average 1.0828691983122363) internal successors, (6416), 5925 states have internal predecessors, (6416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:17,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 6416 transitions. [2024-11-08 11:37:17,307 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 6416 transitions. Word has length 390 [2024-11-08 11:37:17,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:17,308 INFO L471 AbstractCegarLoop]: Abstraction has 5926 states and 6416 transitions. [2024-11-08 11:37:17,308 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) [2024-11-08 11:37:17,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 6416 transitions. [2024-11-08 11:37:17,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2024-11-08 11:37:17,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:17,317 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, 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, 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, 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] [2024-11-08 11:37:17,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 11:37:17,318 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:17,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:17,318 INFO L85 PathProgramCache]: Analyzing trace with hash -769200002, now seen corresponding path program 1 times [2024-11-08 11:37:17,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:17,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412796026] [2024-11-08 11:37:17,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:17,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:17,734 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 11:37:17,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:17,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412796026] [2024-11-08 11:37:17,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412796026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:17,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:37:17,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:37:17,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715338807] [2024-11-08 11:37:17,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:17,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:37:17,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:17,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:37:17,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:37:17,739 INFO L87 Difference]: Start difference. First operand 5926 states and 6416 transitions. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:18,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:18,577 INFO L93 Difference]: Finished difference Result 13495 states and 14710 transitions. [2024-11-08 11:37:18,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:37:18,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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 507 [2024-11-08 11:37:18,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:18,599 INFO L225 Difference]: With dead ends: 13495 [2024-11-08 11:37:18,599 INFO L226 Difference]: Without dead ends: 7900 [2024-11-08 11:37:18,605 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 [2024-11-08 11:37:18,606 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 299 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:18,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 33 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 11:37:18,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7900 states. [2024-11-08 11:37:18,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 7571. [2024-11-08 11:37:18,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7571 states, 7570 states have (on average 1.090885072655218) internal successors, (8258), 7570 states have internal predecessors, (8258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:18,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7571 states to 7571 states and 8258 transitions. [2024-11-08 11:37:18,717 INFO L78 Accepts]: Start accepts. Automaton has 7571 states and 8258 transitions. Word has length 507 [2024-11-08 11:37:18,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:18,720 INFO L471 AbstractCegarLoop]: Abstraction has 7571 states and 8258 transitions. [2024-11-08 11:37:18,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:18,720 INFO L276 IsEmpty]: Start isEmpty. Operand 7571 states and 8258 transitions. [2024-11-08 11:37:18,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-08 11:37:18,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:18,732 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, 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, 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, 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, 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] [2024-11-08 11:37:18,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 11:37:18,732 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:18,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:18,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1795710622, now seen corresponding path program 1 times [2024-11-08 11:37:18,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:18,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100037701] [2024-11-08 11:37:18,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:18,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:19,536 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 331 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:37:19,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:19,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100037701] [2024-11-08 11:37:19,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100037701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:19,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:37:19,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:37:19,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852954389] [2024-11-08 11:37:19,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:19,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:37:19,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:19,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:37:19,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:37:19,540 INFO L87 Difference]: Start difference. First operand 7571 states and 8258 transitions. Second operand has 4 states, 4 states have (on average 143.5) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:20,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:20,745 INFO L93 Difference]: Finished difference Result 15469 states and 16896 transitions. [2024-11-08 11:37:20,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:37:20,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 143.5) internal successors, (574), 3 states have internal predecessors, (574), 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 574 [2024-11-08 11:37:20,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:20,765 INFO L225 Difference]: With dead ends: 15469 [2024-11-08 11:37:20,765 INFO L226 Difference]: Without dead ends: 8229 [2024-11-08 11:37:20,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:37:20,774 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 185 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:20,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 67 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:37:20,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8229 states. [2024-11-08 11:37:20,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8229 to 8229. [2024-11-08 11:37:20,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8229 states, 8228 states have (on average 1.0890860476421973) internal successors, (8961), 8228 states have internal predecessors, (8961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:20,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8229 states to 8229 states and 8961 transitions. [2024-11-08 11:37:20,916 INFO L78 Accepts]: Start accepts. Automaton has 8229 states and 8961 transitions. Word has length 574 [2024-11-08 11:37:20,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:20,917 INFO L471 AbstractCegarLoop]: Abstraction has 8229 states and 8961 transitions. [2024-11-08 11:37:20,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.5) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:20,918 INFO L276 IsEmpty]: Start isEmpty. Operand 8229 states and 8961 transitions. [2024-11-08 11:37:20,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2024-11-08 11:37:20,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:20,923 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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] [2024-11-08 11:37:20,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 11:37:20,924 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:20,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:20,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1828965958, now seen corresponding path program 1 times [2024-11-08 11:37:20,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:20,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390571784] [2024-11-08 11:37:20,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:20,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:21,770 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 462 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-08 11:37:21,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:21,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390571784] [2024-11-08 11:37:21,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390571784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:21,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:37:21,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:37:21,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563249430] [2024-11-08 11:37:21,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:21,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:37:21,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:21,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:37:21,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:37:21,775 INFO L87 Difference]: Start difference. First operand 8229 states and 8961 transitions. Second operand has 4 states, 4 states have (on average 137.25) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:23,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:23,036 INFO L93 Difference]: Finished difference Result 20733 states and 22647 transitions. [2024-11-08 11:37:23,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:37:23,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 137.25) internal successors, (549), 3 states have internal predecessors, (549), 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 597 [2024-11-08 11:37:23,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:23,057 INFO L225 Difference]: With dead ends: 20733 [2024-11-08 11:37:23,057 INFO L226 Difference]: Without dead ends: 12835 [2024-11-08 11:37:23,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:37:23,068 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 272 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:23,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 83 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:37:23,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12835 states. [2024-11-08 11:37:23,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12835 to 12835. [2024-11-08 11:37:23,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 1.086722767648434) internal successors, (13947), 12834 states have internal predecessors, (13947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:23,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 13947 transitions. [2024-11-08 11:37:23,246 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 13947 transitions. Word has length 597 [2024-11-08 11:37:23,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:23,247 INFO L471 AbstractCegarLoop]: Abstraction has 12835 states and 13947 transitions. [2024-11-08 11:37:23,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.25) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:23,248 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 13947 transitions. [2024-11-08 11:37:23,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2024-11-08 11:37:23,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:23,255 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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] [2024-11-08 11:37:23,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 11:37:23,255 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:23,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:23,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1980801661, now seen corresponding path program 1 times [2024-11-08 11:37:23,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:23,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723881870] [2024-11-08 11:37:23,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:23,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:24,000 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2024-11-08 11:37:24,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:24,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723881870] [2024-11-08 11:37:24,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723881870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:37:24,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222014571] [2024-11-08 11:37:24,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:24,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:37:24,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:37:24,003 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) [2024-11-08 11:37:24,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 11:37:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:24,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:37:24,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:37:25,084 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2024-11-08 11:37:25,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:37:25,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222014571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:25,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:37:25,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-08 11:37:25,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717655470] [2024-11-08 11:37:25,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:25,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:37:25,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:25,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:37:25,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:37:25,090 INFO L87 Difference]: Start difference. First operand 12835 states and 13947 transitions. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 2 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:25,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:25,843 INFO L93 Difference]: Finished difference Result 15469 states and 16658 transitions. [2024-11-08 11:37:25,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:37:25,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 2 states have internal predecessors, (294), 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 678 [2024-11-08 11:37:25,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:25,869 INFO L225 Difference]: With dead ends: 15469 [2024-11-08 11:37:25,870 INFO L226 Difference]: Without dead ends: 15467 [2024-11-08 11:37:25,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 677 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:37:25,874 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 62 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:25,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 83 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:37:25,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15467 states. [2024-11-08 11:37:26,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15467 to 12835. [2024-11-08 11:37:26,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 1.0866448496182017) internal successors, (13946), 12834 states have internal predecessors, (13946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:26,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 13946 transitions. [2024-11-08 11:37:26,034 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 13946 transitions. Word has length 678 [2024-11-08 11:37:26,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:26,035 INFO L471 AbstractCegarLoop]: Abstraction has 12835 states and 13946 transitions. [2024-11-08 11:37:26,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 2 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:26,036 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 13946 transitions. [2024-11-08 11:37:26,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1020 [2024-11-08 11:37:26,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:26,053 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-08 11:37:26,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 11:37:26,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 11:37:26,255 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:26,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:26,255 INFO L85 PathProgramCache]: Analyzing trace with hash -175077991, now seen corresponding path program 1 times [2024-11-08 11:37:26,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:26,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475727840] [2024-11-08 11:37:26,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:26,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2395 backedges. 1284 proven. 0 refuted. 0 times theorem prover too weak. 1111 trivial. 0 not checked. [2024-11-08 11:37:27,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:27,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475727840] [2024-11-08 11:37:27,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475727840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:27,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:37:27,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:37:27,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787407181] [2024-11-08 11:37:27,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:27,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:37:27,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:27,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:37:27,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:37:27,085 INFO L87 Difference]: Start difference. First operand 12835 states and 13946 transitions. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:27,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:27,823 INFO L93 Difference]: Finished difference Result 30603 states and 33343 transitions. [2024-11-08 11:37:27,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:37:27,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 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 1019 [2024-11-08 11:37:27,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:27,846 INFO L225 Difference]: With dead ends: 30603 [2024-11-08 11:37:27,846 INFO L226 Difference]: Without dead ends: 16125 [2024-11-08 11:37:27,859 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 [2024-11-08 11:37:27,860 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 270 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:27,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 430 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:37:27,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2024-11-08 11:37:28,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 15796. [2024-11-08 11:37:28,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15796 states, 15795 states have (on average 1.067363089585312) internal successors, (16859), 15795 states have internal predecessors, (16859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:28,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15796 states to 15796 states and 16859 transitions. [2024-11-08 11:37:28,040 INFO L78 Accepts]: Start accepts. Automaton has 15796 states and 16859 transitions. Word has length 1019 [2024-11-08 11:37:28,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:28,041 INFO L471 AbstractCegarLoop]: Abstraction has 15796 states and 16859 transitions. [2024-11-08 11:37:28,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:28,042 INFO L276 IsEmpty]: Start isEmpty. Operand 15796 states and 16859 transitions. [2024-11-08 11:37:28,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1327 [2024-11-08 11:37:28,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:28,105 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-08 11:37:28,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 11:37:28,105 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:28,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:28,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1820355349, now seen corresponding path program 1 times [2024-11-08 11:37:28,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:28,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187895218] [2024-11-08 11:37:28,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:28,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:28,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3561 backedges. 2230 proven. 0 refuted. 0 times theorem prover too weak. 1331 trivial. 0 not checked. [2024-11-08 11:37:28,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:28,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187895218] [2024-11-08 11:37:28,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187895218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:28,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:37:28,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:37:28,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723728973] [2024-11-08 11:37:28,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:28,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:37:28,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:28,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:37:28,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:37:28,842 INFO L87 Difference]: Start difference. First operand 15796 states and 16859 transitions. Second operand has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:29,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:29,514 INFO L93 Difference]: Finished difference Result 31261 states and 33392 transitions. [2024-11-08 11:37:29,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:37:29,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 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 1326 [2024-11-08 11:37:29,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:29,537 INFO L225 Difference]: With dead ends: 31261 [2024-11-08 11:37:29,537 INFO L226 Difference]: Without dead ends: 16125 [2024-11-08 11:37:29,551 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 [2024-11-08 11:37:29,552 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 251 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:29,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 424 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:37:29,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2024-11-08 11:37:29,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 15467. [2024-11-08 11:37:29,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15467 states, 15466 states have (on average 1.058644769171085) internal successors, (16373), 15466 states have internal predecessors, (16373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:29,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15467 states to 15467 states and 16373 transitions. [2024-11-08 11:37:29,716 INFO L78 Accepts]: Start accepts. Automaton has 15467 states and 16373 transitions. Word has length 1326 [2024-11-08 11:37:29,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:29,717 INFO L471 AbstractCegarLoop]: Abstraction has 15467 states and 16373 transitions. [2024-11-08 11:37:29,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:29,718 INFO L276 IsEmpty]: Start isEmpty. Operand 15467 states and 16373 transitions. [2024-11-08 11:37:29,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1331 [2024-11-08 11:37:29,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:37:29,742 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:37:29,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 11:37:29,742 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:37:29,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:37:29,743 INFO L85 PathProgramCache]: Analyzing trace with hash -952589750, now seen corresponding path program 1 times [2024-11-08 11:37:29,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:37:29,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205463461] [2024-11-08 11:37:29,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:37:29,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:37:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:37:30,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3723 backedges. 1311 proven. 0 refuted. 0 times theorem prover too weak. 2412 trivial. 0 not checked. [2024-11-08 11:37:30,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:37:30,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205463461] [2024-11-08 11:37:30,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205463461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:37:30,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:37:30,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:37:30,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190399541] [2024-11-08 11:37:30,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:37:30,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:37:30,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:37:30,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:37:30,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:37:30,561 INFO L87 Difference]: Start difference. First operand 15467 states and 16373 transitions. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:31,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:37:31,331 INFO L93 Difference]: Finished difference Result 33233 states and 35255 transitions. [2024-11-08 11:37:31,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:37:31,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 1330 [2024-11-08 11:37:31,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:37:31,333 INFO L225 Difference]: With dead ends: 33233 [2024-11-08 11:37:31,333 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 11:37:31,349 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 [2024-11-08 11:37:31,350 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 170 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:37:31,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 409 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:37:31,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 11:37:31,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 11:37:31,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:31,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 11:37:31,352 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1330 [2024-11-08 11:37:31,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:37:31,352 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 11:37:31,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:37:31,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 11:37:31,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 11:37:31,356 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 11:37:31,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 11:37:31,360 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:37:31,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 11:37:32,017 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 11:37:32,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 11:37:32 BoogieIcfgContainer [2024-11-08 11:37:32,037 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 11:37:32,038 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 11:37:32,038 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 11:37:32,038 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 11:37:32,039 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:37:03" (3/4) ... [2024-11-08 11:37:32,041 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 11:37:32,075 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-08 11:37:32,080 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 11:37:32,082 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 11:37:32,084 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 11:37:32,298 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 11:37:32,299 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 11:37:32,299 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 11:37:32,300 INFO L158 Benchmark]: Toolchain (without parser) took 31926.82ms. Allocated memory was 146.8MB in the beginning and 1.1GB in the end (delta: 941.6MB). Free memory was 84.7MB in the beginning and 555.3MB in the end (delta: -470.6MB). Peak memory consumption was 473.3MB. Max. memory is 16.1GB. [2024-11-08 11:37:32,300 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 146.8MB. Free memory is still 107.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 11:37:32,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 912.25ms. Allocated memory was 146.8MB in the beginning and 190.8MB in the end (delta: 44.0MB). Free memory was 84.3MB in the beginning and 124.7MB in the end (delta: -40.4MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2024-11-08 11:37:32,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 143.09ms. Allocated memory is still 190.8MB. Free memory was 124.7MB in the beginning and 100.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 11:37:32,302 INFO L158 Benchmark]: Boogie Preprocessor took 220.53ms. Allocated memory is still 190.8MB. Free memory was 100.6MB in the beginning and 65.7MB in the end (delta: 34.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-08 11:37:32,302 INFO L158 Benchmark]: RCFGBuilder took 2345.89ms. Allocated memory was 190.8MB in the beginning and 272.6MB in the end (delta: 81.8MB). Free memory was 65.7MB in the beginning and 215.8MB in the end (delta: -150.1MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2024-11-08 11:37:32,303 INFO L158 Benchmark]: TraceAbstraction took 28034.97ms. Allocated memory was 272.6MB in the beginning and 1.1GB in the end (delta: 815.8MB). Free memory was 214.8MB in the beginning and 581.5MB in the end (delta: -366.7MB). Peak memory consumption was 448.1MB. Max. memory is 16.1GB. [2024-11-08 11:37:32,303 INFO L158 Benchmark]: Witness Printer took 261.82ms. Allocated memory is still 1.1GB. Free memory was 581.5MB in the beginning and 555.3MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-08 11:37:32,305 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 146.8MB. Free memory is still 107.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 912.25ms. Allocated memory was 146.8MB in the beginning and 190.8MB in the end (delta: 44.0MB). Free memory was 84.3MB in the beginning and 124.7MB in the end (delta: -40.4MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 143.09ms. Allocated memory is still 190.8MB. Free memory was 124.7MB in the beginning and 100.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 220.53ms. Allocated memory is still 190.8MB. Free memory was 100.6MB in the beginning and 65.7MB in the end (delta: 34.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * RCFGBuilder took 2345.89ms. Allocated memory was 190.8MB in the beginning and 272.6MB in the end (delta: 81.8MB). Free memory was 65.7MB in the beginning and 215.8MB in the end (delta: -150.1MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. * TraceAbstraction took 28034.97ms. Allocated memory was 272.6MB in the beginning and 1.1GB in the end (delta: 815.8MB). Free memory was 214.8MB in the beginning and 581.5MB in the end (delta: -366.7MB). Peak memory consumption was 448.1MB. Max. memory is 16.1GB. * Witness Printer took 261.82ms. Allocated memory is still 1.1GB. Free memory was 581.5MB in the beginning and 555.3MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. 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: 170]: 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, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.3s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3460 SdHoareTripleChecker+Valid, 15.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3460 mSDsluCounter, 2798 SdHoareTripleChecker+Invalid, 12.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 165 mSDsCounter, 2448 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14486 IncrementalHoareTripleChecker+Invalid, 16934 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2448 mSolverCounterUnsat, 2633 mSDtfsCounter, 14486 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 719 GetRequests, 695 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15796occurred in iteration=12, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 3948 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 8274 NumberOfCodeBlocks, 8274 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 8259 ConstructedInterpolants, 0 QuantifiedInterpolants, 24692 SizeOfPredicates, 0 NumberOfNonLiveVariables, 800 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 12395/12563 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: 1783]: Loop Invariant Derived loop invariant: ((((((a16 == 8) || ((a15 <= 3) && (11 <= a16))) || (a16 == 9)) || ((a15 <= 3) && (a12 <= 8))) || ((a12 <= 7) && (a16 <= 11))) || ((a15 <= 3) && (((long long) 87 + a18) <= 0))) RESULT: Ultimate proved your program to be correct! [2024-11-08 11:37:32,339 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