./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label29.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem12_label29.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 5b97ff5ceba251ab7fbafe0c3432eac346423cbbff0a928a797ba0e4f7876661 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:54:33,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:54:33,116 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:54:33,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:54:33,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:54:33,148 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:54:33,148 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:54:33,149 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:54:33,149 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:54:33,150 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:54:33,151 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:54:33,151 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:54:33,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:54:33,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:54:33,154 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:54:33,155 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:54:33,155 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:54:33,155 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:54:33,156 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:54:33,156 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:54:33,156 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:54:33,160 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:54:33,160 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:54:33,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:54:33,161 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:54:33,161 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:54:33,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:54:33,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:54:33,162 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:54:33,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:54:33,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:54:33,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:54:33,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:54:33,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:54:33,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:54:33,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:54:33,164 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:54:33,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:54:33,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:54:33,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:54:33,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:54:33,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:54:33,165 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b97ff5ceba251ab7fbafe0c3432eac346423cbbff0a928a797ba0e4f7876661 [2024-11-16 03:54:33,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:54:33,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:54:33,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:54:33,433 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:54:33,433 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:54:33,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label29.c [2024-11-16 03:54:34,909 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:54:35,325 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:54:35,327 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label29.c [2024-11-16 03:54:35,362 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f31b15e7a/ffc575b383c94c43aa8f0179b28d9785/FLAGe72cf2005 [2024-11-16 03:54:35,377 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f31b15e7a/ffc575b383c94c43aa8f0179b28d9785 [2024-11-16 03:54:35,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:54:35,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:54:35,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:54:35,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:54:35,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:54:35,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:54:35" (1/1) ... [2024-11-16 03:54:35,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c318d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:35, skipping insertion in model container [2024-11-16 03:54:35,391 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:54:35" (1/1) ... [2024-11-16 03:54:35,495 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:54:35,779 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/Problem12_label29.c[6855,6868] [2024-11-16 03:54:36,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:54:36,535 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:54:36,557 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/Problem12_label29.c[6855,6868] [2024-11-16 03:54:37,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:54:37,055 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:54:37,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37 WrapperNode [2024-11-16 03:54:37,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:54:37,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:54:37,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:54:37,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:54:37,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37" (1/1) ... [2024-11-16 03:54:37,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37" (1/1) ... [2024-11-16 03:54:37,436 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-16 03:54:37,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:54:37,438 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:54:37,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:54:37,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:54:37,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37" (1/1) ... [2024-11-16 03:54:37,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37" (1/1) ... [2024-11-16 03:54:37,492 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37" (1/1) ... [2024-11-16 03:54:37,760 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 03:54:37,760 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37" (1/1) ... [2024-11-16 03:54:37,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37" (1/1) ... [2024-11-16 03:54:37,928 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37" (1/1) ... [2024-11-16 03:54:37,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37" (1/1) ... [2024-11-16 03:54:37,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37" (1/1) ... [2024-11-16 03:54:37,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37" (1/1) ... [2024-11-16 03:54:38,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:54:38,049 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:54:38,049 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:54:38,050 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:54:38,051 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37" (1/1) ... [2024-11-16 03:54:38,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:54:38,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:54:38,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 03:54:38,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 03:54:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:54:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:54:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:54:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:54:38,202 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:54:38,204 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:54:42,164 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4665: havoc calculate_output3_#t~ret11#1; [2024-11-16 03:54:42,164 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc calculate_output_#t~ret9#1; [2024-11-16 03:54:42,165 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3175: havoc calculate_output2_#t~ret10#1; [2024-11-16 03:54:42,397 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-16 03:54:42,397 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:54:42,441 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:54:42,442 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:54:42,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:54:42 BoogieIcfgContainer [2024-11-16 03:54:42,442 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:54:42,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:54:42,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:54:42,449 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:54:42,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:54:35" (1/3) ... [2024-11-16 03:54:42,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0b8d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:54:42, skipping insertion in model container [2024-11-16 03:54:42,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:37" (2/3) ... [2024-11-16 03:54:42,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0b8d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:54:42, skipping insertion in model container [2024-11-16 03:54:42,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:54:42" (3/3) ... [2024-11-16 03:54:42,453 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label29.c [2024-11-16 03:54:42,471 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:54:42,471 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:54:42,560 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:54:42,569 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;@386ee304, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:54:42,570 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:54:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:54:42,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-16 03:54:42,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:54:42,586 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:54:42,586 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:54:42,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:54:42,592 INFO L85 PathProgramCache]: Analyzing trace with hash 500226986, now seen corresponding path program 1 times [2024-11-16 03:54:42,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:54:42,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536864749] [2024-11-16 03:54:42,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:54:42,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:54:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:54:42,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:54:42,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:54:42,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536864749] [2024-11-16 03:54:42,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536864749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:54:42,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:54:42,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:54:42,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896003355] [2024-11-16 03:54:42,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:54:43,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:54:43,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:54:43,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:54:43,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:54:43,033 INFO L87 Difference]: Start difference. First operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 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 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:54:46,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:54:46,412 INFO L93 Difference]: Finished difference Result 2410 states and 4651 transitions. [2024-11-16 03:54:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:54:46,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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 57 [2024-11-16 03:54:46,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:54:46,433 INFO L225 Difference]: With dead ends: 2410 [2024-11-16 03:54:46,433 INFO L226 Difference]: Without dead ends: 1509 [2024-11-16 03:54:46,438 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 [2024-11-16 03:54:46,442 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 765 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:54:46,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 529 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 03:54:46,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-16 03:54:46,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2024-11-16 03:54:46,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 1.6054376657824934) internal successors, (2421), 1508 states have internal predecessors, (2421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:54:46,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2421 transitions. [2024-11-16 03:54:46,573 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2421 transitions. Word has length 57 [2024-11-16 03:54:46,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:54:46,574 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2421 transitions. [2024-11-16 03:54:46,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:54:46,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2421 transitions. [2024-11-16 03:54:46,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-16 03:54:46,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:54:46,578 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:54:46,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:54:46,579 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:54:46,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:54:46,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1288858697, now seen corresponding path program 1 times [2024-11-16 03:54:46,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:54:46,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834852599] [2024-11-16 03:54:46,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:54:46,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:54:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:54:46,833 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:54:46,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:54:46,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834852599] [2024-11-16 03:54:46,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834852599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:54:46,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:54:46,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:54:46,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086614180] [2024-11-16 03:54:46,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:54:46,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:54:46,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:54:46,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:54:46,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:54:46,838 INFO L87 Difference]: Start difference. First operand 1509 states and 2421 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:54:50,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:54:50,187 INFO L93 Difference]: Finished difference Result 4523 states and 7259 transitions. [2024-11-16 03:54:50,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:54:50,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 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 133 [2024-11-16 03:54:50,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:54:50,201 INFO L225 Difference]: With dead ends: 4523 [2024-11-16 03:54:50,202 INFO L226 Difference]: Without dead ends: 3016 [2024-11-16 03:54:50,205 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 [2024-11-16 03:54:50,206 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 917 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:54:50,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 588 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-16 03:54:50,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2024-11-16 03:54:50,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 3013. [2024-11-16 03:54:50,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 3012 states have (on average 1.4588313413014609) internal successors, (4394), 3012 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:54:50,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4394 transitions. [2024-11-16 03:54:50,265 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4394 transitions. Word has length 133 [2024-11-16 03:54:50,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:54:50,268 INFO L471 AbstractCegarLoop]: Abstraction has 3013 states and 4394 transitions. [2024-11-16 03:54:50,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:54:50,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4394 transitions. [2024-11-16 03:54:50,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 03:54:50,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:54:50,275 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:54:50,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:54:50,276 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:54:50,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:54:50,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1616646837, now seen corresponding path program 1 times [2024-11-16 03:54:50,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:54:50,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663375854] [2024-11-16 03:54:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:54:50,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:54:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:54:50,517 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:54:50,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:54:50,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663375854] [2024-11-16 03:54:50,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663375854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:54:50,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:54:50,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:54:50,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138272892] [2024-11-16 03:54:50,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:54:50,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:54:50,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:54:50,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:54:50,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:54:50,521 INFO L87 Difference]: Start difference. First operand 3013 states and 4394 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:54:53,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:54:53,099 INFO L93 Difference]: Finished difference Result 9032 states and 13176 transitions. [2024-11-16 03:54:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:54:53,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 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 162 [2024-11-16 03:54:53,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:54:53,122 INFO L225 Difference]: With dead ends: 9032 [2024-11-16 03:54:53,122 INFO L226 Difference]: Without dead ends: 6021 [2024-11-16 03:54:53,128 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 [2024-11-16 03:54:53,130 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 746 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:54:53,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 450 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:54:53,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2024-11-16 03:54:53,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 6021. [2024-11-16 03:54:53,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6021 states, 6020 states have (on average 1.2946843853820598) internal successors, (7794), 6020 states have internal predecessors, (7794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:54:53,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6021 states to 6021 states and 7794 transitions. [2024-11-16 03:54:53,235 INFO L78 Accepts]: Start accepts. Automaton has 6021 states and 7794 transitions. Word has length 162 [2024-11-16 03:54:53,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:54:53,237 INFO L471 AbstractCegarLoop]: Abstraction has 6021 states and 7794 transitions. [2024-11-16 03:54:53,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:54:53,238 INFO L276 IsEmpty]: Start isEmpty. Operand 6021 states and 7794 transitions. [2024-11-16 03:54:53,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-16 03:54:53,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:54:53,243 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:54:53,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:54:53,244 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:54:53,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:54:53,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1271532110, now seen corresponding path program 1 times [2024-11-16 03:54:53,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:54:53,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443313980] [2024-11-16 03:54:53,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:54:53,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:54:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:54:53,653 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 03:54:53,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:54:53,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443313980] [2024-11-16 03:54:53,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443313980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:54:53,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924347057] [2024-11-16 03:54:53,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:54:53,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:54:53,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:54:53,657 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) [2024-11-16 03:54:53,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:54:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:54:53,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:54:53,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:54:54,062 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-16 03:54:54,062 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:54:54,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924347057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:54:54,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:54:54,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 03:54:54,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359353207] [2024-11-16 03:54:54,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:54:54,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:54:54,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:54:54,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:54:54,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:54:54,065 INFO L87 Difference]: Start difference. First operand 6021 states and 7794 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:54:56,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:54:56,422 INFO L93 Difference]: Finished difference Result 15048 states and 18986 transitions. [2024-11-16 03:54:56,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:54:56,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 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 199 [2024-11-16 03:54:56,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:54:56,449 INFO L225 Difference]: With dead ends: 15048 [2024-11-16 03:54:56,450 INFO L226 Difference]: Without dead ends: 9029 [2024-11-16 03:54:56,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:54:56,460 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 689 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2418 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 2418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:54:56,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 234 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 2418 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:54:56,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9029 states. [2024-11-16 03:54:56,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9029 to 8277. [2024-11-16 03:54:56,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8277 states, 8276 states have (on average 1.2278878685355243) internal successors, (10162), 8276 states have internal predecessors, (10162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:54:56,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8277 states to 8277 states and 10162 transitions. [2024-11-16 03:54:56,602 INFO L78 Accepts]: Start accepts. Automaton has 8277 states and 10162 transitions. Word has length 199 [2024-11-16 03:54:56,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:54:56,603 INFO L471 AbstractCegarLoop]: Abstraction has 8277 states and 10162 transitions. [2024-11-16 03:54:56,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:54:56,604 INFO L276 IsEmpty]: Start isEmpty. Operand 8277 states and 10162 transitions. [2024-11-16 03:54:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-16 03:54:56,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:54:56,607 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:54:56,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 03:54:56,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:54:56,808 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:54:56,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:54:56,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1764778019, now seen corresponding path program 1 times [2024-11-16 03:54:56,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:54:56,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732581304] [2024-11-16 03:54:56,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:54:56,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:54:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:54:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-16 03:54:57,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:54:57,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732581304] [2024-11-16 03:54:57,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732581304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:54:57,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:54:57,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:54:57,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859957921] [2024-11-16 03:54:57,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:54:57,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:54:57,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:54:57,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:54:57,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:54:57,270 INFO L87 Difference]: Start difference. First operand 8277 states and 10162 transitions. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:00,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:00,266 INFO L93 Difference]: Finished difference Result 16631 states and 20400 transitions. [2024-11-16 03:55:00,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:55:00,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 3 states have internal predecessors, (201), 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 271 [2024-11-16 03:55:00,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:00,287 INFO L225 Difference]: With dead ends: 16631 [2024-11-16 03:55:00,287 INFO L226 Difference]: Without dead ends: 8280 [2024-11-16 03:55:00,295 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 [2024-11-16 03:55:00,296 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 776 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 3718 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 4008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 3718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:00,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 375 Invalid, 4008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 3718 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 03:55:00,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8280 states. [2024-11-16 03:55:00,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8280 to 8277. [2024-11-16 03:55:00,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8277 states, 8276 states have (on average 1.1974383760270662) internal successors, (9910), 8276 states have internal predecessors, (9910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:00,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8277 states to 8277 states and 9910 transitions. [2024-11-16 03:55:00,424 INFO L78 Accepts]: Start accepts. Automaton has 8277 states and 9910 transitions. Word has length 271 [2024-11-16 03:55:00,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:00,424 INFO L471 AbstractCegarLoop]: Abstraction has 8277 states and 9910 transitions. [2024-11-16 03:55:00,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:00,425 INFO L276 IsEmpty]: Start isEmpty. Operand 8277 states and 9910 transitions. [2024-11-16 03:55:00,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-16 03:55:00,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:00,428 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:55:00,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:55:00,430 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:00,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:00,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1640456777, now seen corresponding path program 1 times [2024-11-16 03:55:00,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:00,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639698956] [2024-11-16 03:55:00,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:00,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:01,248 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-16 03:55:01,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:01,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639698956] [2024-11-16 03:55:01,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639698956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:01,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:01,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 03:55:01,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412306910] [2024-11-16 03:55:01,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:01,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 03:55:01,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:01,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 03:55:01,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:55:01,253 INFO L87 Difference]: Start difference. First operand 8277 states and 9910 transitions. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:05,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:05,547 INFO L93 Difference]: Finished difference Result 21816 states and 25483 transitions. [2024-11-16 03:55:05,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 03:55:05,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 4 states have internal predecessors, (219), 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 272 [2024-11-16 03:55:05,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:05,569 INFO L225 Difference]: With dead ends: 21816 [2024-11-16 03:55:05,570 INFO L226 Difference]: Without dead ends: 13541 [2024-11-16 03:55:05,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:55:05,580 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 3433 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5170 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3433 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 5316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 5170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:05,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3433 Valid, 640 Invalid, 5316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 5170 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-16 03:55:05,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13541 states. [2024-11-16 03:55:05,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13541 to 12037. [2024-11-16 03:55:05,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12037 states, 12036 states have (on average 1.1514622798271852) internal successors, (13859), 12036 states have internal predecessors, (13859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12037 states to 12037 states and 13859 transitions. [2024-11-16 03:55:05,822 INFO L78 Accepts]: Start accepts. Automaton has 12037 states and 13859 transitions. Word has length 272 [2024-11-16 03:55:05,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:05,823 INFO L471 AbstractCegarLoop]: Abstraction has 12037 states and 13859 transitions. [2024-11-16 03:55:05,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:05,824 INFO L276 IsEmpty]: Start isEmpty. Operand 12037 states and 13859 transitions. [2024-11-16 03:55:05,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-16 03:55:05,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:05,829 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, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:05,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:55:05,829 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:05,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:05,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1649140138, now seen corresponding path program 1 times [2024-11-16 03:55:05,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:05,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262816198] [2024-11-16 03:55:05,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:05,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:06,055 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 331 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-16 03:55:06,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:06,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262816198] [2024-11-16 03:55:06,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262816198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:06,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:06,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:06,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883343917] [2024-11-16 03:55:06,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:06,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:06,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:06,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:06,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:06,060 INFO L87 Difference]: Start difference. First operand 12037 states and 13859 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:08,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:08,882 INFO L93 Difference]: Finished difference Result 36104 states and 41571 transitions. [2024-11-16 03:55:08,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:08,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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 355 [2024-11-16 03:55:08,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:08,925 INFO L225 Difference]: With dead ends: 36104 [2024-11-16 03:55:08,925 INFO L226 Difference]: Without dead ends: 24069 [2024-11-16 03:55:08,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:08,942 INFO L432 NwaCegarLoop]: 1381 mSDtfsCounter, 667 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2720 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 3081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 2720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:08,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 1391 Invalid, 3081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 2720 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 03:55:08,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24069 states. [2024-11-16 03:55:09,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24069 to 21813. [2024-11-16 03:55:09,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21813 states, 21812 states have (on average 1.1408857509627728) internal successors, (24885), 21812 states have internal predecessors, (24885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:09,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21813 states to 21813 states and 24885 transitions. [2024-11-16 03:55:09,214 INFO L78 Accepts]: Start accepts. Automaton has 21813 states and 24885 transitions. Word has length 355 [2024-11-16 03:55:09,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:09,214 INFO L471 AbstractCegarLoop]: Abstraction has 21813 states and 24885 transitions. [2024-11-16 03:55:09,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:09,215 INFO L276 IsEmpty]: Start isEmpty. Operand 21813 states and 24885 transitions. [2024-11-16 03:55:09,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-16 03:55:09,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:09,224 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, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:09,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:55:09,225 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:09,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:09,225 INFO L85 PathProgramCache]: Analyzing trace with hash 443701792, now seen corresponding path program 1 times [2024-11-16 03:55:09,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:09,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552958787] [2024-11-16 03:55:09,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:09,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:09,642 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-16 03:55:09,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:09,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552958787] [2024-11-16 03:55:09,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552958787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:09,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:09,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:09,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624360802] [2024-11-16 03:55:09,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:09,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:09,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:09,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:09,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:09,644 INFO L87 Difference]: Start difference. First operand 21813 states and 24885 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:12,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:12,201 INFO L93 Difference]: Finished difference Result 51896 states and 60106 transitions. [2024-11-16 03:55:12,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:12,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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 359 [2024-11-16 03:55:12,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:12,252 INFO L225 Difference]: With dead ends: 51896 [2024-11-16 03:55:12,252 INFO L226 Difference]: Without dead ends: 30085 [2024-11-16 03:55:12,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:12,278 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 702 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 2912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:12,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 511 Invalid, 2912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:55:12,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30085 states. [2024-11-16 03:55:12,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30085 to 29333. [2024-11-16 03:55:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29333 states, 29332 states have (on average 1.1455066139369972) internal successors, (33600), 29332 states have internal predecessors, (33600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:12,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29333 states to 29333 states and 33600 transitions. [2024-11-16 03:55:12,587 INFO L78 Accepts]: Start accepts. Automaton has 29333 states and 33600 transitions. Word has length 359 [2024-11-16 03:55:12,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:12,587 INFO L471 AbstractCegarLoop]: Abstraction has 29333 states and 33600 transitions. [2024-11-16 03:55:12,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:12,588 INFO L276 IsEmpty]: Start isEmpty. Operand 29333 states and 33600 transitions. [2024-11-16 03:55:12,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-16 03:55:12,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:12,597 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, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:12,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:55:12,597 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:12,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:12,598 INFO L85 PathProgramCache]: Analyzing trace with hash -346573786, now seen corresponding path program 1 times [2024-11-16 03:55:12,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:12,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784385512] [2024-11-16 03:55:12,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:12,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:13,171 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 161 proven. 110 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-16 03:55:13,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:13,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784385512] [2024-11-16 03:55:13,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784385512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:55:13,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260868000] [2024-11-16 03:55:13,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:13,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:55:13,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:55:13,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:55:13,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:55:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:13,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:55:13,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:55:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-16 03:55:13,461 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:55:13,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260868000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:13,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:55:13,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:55:13,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512910067] [2024-11-16 03:55:13,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:13,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:13,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:13,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:13,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:55:13,463 INFO L87 Difference]: Start difference. First operand 29333 states and 33600 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:15,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:15,907 INFO L93 Difference]: Finished difference Result 70696 states and 82106 transitions. [2024-11-16 03:55:15,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:15,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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 387 [2024-11-16 03:55:15,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:16,087 INFO L225 Difference]: With dead ends: 70696 [2024-11-16 03:55:16,087 INFO L226 Difference]: Without dead ends: 41365 [2024-11-16 03:55:16,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:55:16,106 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 790 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 818 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 2885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 818 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:16,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 238 Invalid, 2885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [818 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 03:55:16,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41365 states. [2024-11-16 03:55:16,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41365 to 41365. [2024-11-16 03:55:16,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41365 states, 41364 states have (on average 1.1383086742094575) internal successors, (47085), 41364 states have internal predecessors, (47085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:16,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41365 states to 41365 states and 47085 transitions. [2024-11-16 03:55:16,635 INFO L78 Accepts]: Start accepts. Automaton has 41365 states and 47085 transitions. Word has length 387 [2024-11-16 03:55:16,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:16,636 INFO L471 AbstractCegarLoop]: Abstraction has 41365 states and 47085 transitions. [2024-11-16 03:55:16,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:16,637 INFO L276 IsEmpty]: Start isEmpty. Operand 41365 states and 47085 transitions. [2024-11-16 03:55:16,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-16 03:55:16,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:16,642 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, 4, 4, 4, 4, 4, 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] [2024-11-16 03:55:16,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 03:55:16,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-16 03:55:16,843 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:16,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:16,844 INFO L85 PathProgramCache]: Analyzing trace with hash -2094670736, now seen corresponding path program 1 times [2024-11-16 03:55:16,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:16,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462493166] [2024-11-16 03:55:16,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:16,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:17,147 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-16 03:55:17,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:17,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462493166] [2024-11-16 03:55:17,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462493166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:17,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:17,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:17,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736623001] [2024-11-16 03:55:17,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:17,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:17,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:17,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:17,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:17,150 INFO L87 Difference]: Start difference. First operand 41365 states and 47085 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:19,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:19,857 INFO L93 Difference]: Finished difference Result 99272 states and 113820 transitions. [2024-11-16 03:55:19,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:19,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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 391 [2024-11-16 03:55:19,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:19,926 INFO L225 Difference]: With dead ends: 99272 [2024-11-16 03:55:19,926 INFO L226 Difference]: Without dead ends: 57909 [2024-11-16 03:55:19,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:19,944 INFO L432 NwaCegarLoop]: 353 mSDtfsCounter, 724 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2481 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 2921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 2481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:19,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 362 Invalid, 2921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 2481 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:55:19,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57909 states. [2024-11-16 03:55:20,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57909 to 55653. [2024-11-16 03:55:20,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55653 states, 55652 states have (on average 1.1393480917127865) internal successors, (63407), 55652 states have internal predecessors, (63407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:20,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55653 states to 55653 states and 63407 transitions. [2024-11-16 03:55:20,406 INFO L78 Accepts]: Start accepts. Automaton has 55653 states and 63407 transitions. Word has length 391 [2024-11-16 03:55:20,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:20,406 INFO L471 AbstractCegarLoop]: Abstraction has 55653 states and 63407 transitions. [2024-11-16 03:55:20,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:20,407 INFO L276 IsEmpty]: Start isEmpty. Operand 55653 states and 63407 transitions. [2024-11-16 03:55:20,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-11-16 03:55:20,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:20,414 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, 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, 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] [2024-11-16 03:55:20,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:55:20,414 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:20,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:20,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1146633428, now seen corresponding path program 1 times [2024-11-16 03:55:20,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:20,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817589083] [2024-11-16 03:55:20,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:20,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:20,700 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-16 03:55:20,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:20,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817589083] [2024-11-16 03:55:20,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817589083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:20,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:20,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:20,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681429811] [2024-11-16 03:55:20,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:20,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:20,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:20,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:20,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:20,703 INFO L87 Difference]: Start difference. First operand 55653 states and 63407 transitions. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:23,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:23,744 INFO L93 Difference]: Finished difference Result 151912 states and 174388 transitions. [2024-11-16 03:55:23,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:23,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 415 [2024-11-16 03:55:23,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:23,846 INFO L225 Difference]: With dead ends: 151912 [2024-11-16 03:55:23,846 INFO L226 Difference]: Without dead ends: 96261 [2024-11-16 03:55:23,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:23,887 INFO L432 NwaCegarLoop]: 1266 mSDtfsCounter, 711 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2132 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 2820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 2132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:23,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1276 Invalid, 2820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 2132 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:55:23,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96261 states. [2024-11-16 03:55:24,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96261 to 89493. [2024-11-16 03:55:25,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89493 states, 89492 states have (on average 1.1137643588253698) internal successors, (99673), 89492 states have internal predecessors, (99673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:25,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89493 states to 89493 states and 99673 transitions. [2024-11-16 03:55:25,171 INFO L78 Accepts]: Start accepts. Automaton has 89493 states and 99673 transitions. Word has length 415 [2024-11-16 03:55:25,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:25,172 INFO L471 AbstractCegarLoop]: Abstraction has 89493 states and 99673 transitions. [2024-11-16 03:55:25,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:25,172 INFO L276 IsEmpty]: Start isEmpty. Operand 89493 states and 99673 transitions. [2024-11-16 03:55:25,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-16 03:55:25,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:25,184 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:25,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:55:25,185 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:25,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:25,185 INFO L85 PathProgramCache]: Analyzing trace with hash 296828556, now seen corresponding path program 1 times [2024-11-16 03:55:25,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:25,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062393314] [2024-11-16 03:55:25,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:25,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:25,760 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-16 03:55:25,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:25,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062393314] [2024-11-16 03:55:25,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062393314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:25,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:25,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:25,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589449483] [2024-11-16 03:55:25,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:25,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:25,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:25,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:25,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:25,763 INFO L87 Difference]: Start difference. First operand 89493 states and 99673 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:28,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:28,697 INFO L93 Difference]: Finished difference Result 221848 states and 248979 transitions. [2024-11-16 03:55:28,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:28,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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 482 [2024-11-16 03:55:28,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:29,039 INFO L225 Difference]: With dead ends: 221848 [2024-11-16 03:55:29,039 INFO L226 Difference]: Without dead ends: 127845 [2024-11-16 03:55:29,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:29,080 INFO L432 NwaCegarLoop]: 1274 mSDtfsCounter, 711 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 2815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:29,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1284 Invalid, 2815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:55:29,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127845 states. [2024-11-16 03:55:30,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127845 to 124085. [2024-11-16 03:55:30,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124085 states, 124084 states have (on average 1.0954111730763032) internal successors, (135923), 124084 states have internal predecessors, (135923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:30,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124085 states to 124085 states and 135923 transitions. [2024-11-16 03:55:30,606 INFO L78 Accepts]: Start accepts. Automaton has 124085 states and 135923 transitions. Word has length 482 [2024-11-16 03:55:30,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:30,606 INFO L471 AbstractCegarLoop]: Abstraction has 124085 states and 135923 transitions. [2024-11-16 03:55:30,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:30,607 INFO L276 IsEmpty]: Start isEmpty. Operand 124085 states and 135923 transitions. [2024-11-16 03:55:30,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2024-11-16 03:55:30,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:30,887 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:30,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:55:30,888 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:30,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:30,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1711492614, now seen corresponding path program 1 times [2024-11-16 03:55:30,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:30,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34966046] [2024-11-16 03:55:30,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:30,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:32,009 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 452 proven. 110 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-16 03:55:32,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:32,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34966046] [2024-11-16 03:55:32,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34966046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:55:32,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230261858] [2024-11-16 03:55:32,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:32,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:55:32,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:55:32,012 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:55:32,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 03:55:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:32,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:55:32,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:55:32,412 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 506 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-16 03:55:32,413 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:55:32,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230261858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:32,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:55:32,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:55:32,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120394702] [2024-11-16 03:55:32,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:32,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:32,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:32,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:32,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:55:32,416 INFO L87 Difference]: Start difference. First operand 124085 states and 135923 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:35,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:35,594 INFO L93 Difference]: Finished difference Result 274488 states and 303244 transitions. [2024-11-16 03:55:35,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:35,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 553 [2024-11-16 03:55:35,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:35,754 INFO L225 Difference]: With dead ends: 274488 [2024-11-16 03:55:35,754 INFO L226 Difference]: Without dead ends: 150405 [2024-11-16 03:55:35,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:55:35,807 INFO L432 NwaCegarLoop]: 1361 mSDtfsCounter, 655 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2117 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 2698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 2117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:35,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1371 Invalid, 2698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 2117 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:55:35,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150405 states. [2024-11-16 03:55:37,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150405 to 146645. [2024-11-16 03:55:37,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146645 states, 146644 states have (on average 1.0845107880308775) internal successors, (159037), 146644 states have internal predecessors, (159037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:37,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146645 states to 146645 states and 159037 transitions. [2024-11-16 03:55:37,850 INFO L78 Accepts]: Start accepts. Automaton has 146645 states and 159037 transitions. Word has length 553 [2024-11-16 03:55:37,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:37,850 INFO L471 AbstractCegarLoop]: Abstraction has 146645 states and 159037 transitions. [2024-11-16 03:55:37,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:37,850 INFO L276 IsEmpty]: Start isEmpty. Operand 146645 states and 159037 transitions. [2024-11-16 03:55:37,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2024-11-16 03:55:37,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:37,897 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:37,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 03:55:38,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:55:38,098 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:38,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:38,098 INFO L85 PathProgramCache]: Analyzing trace with hash -736220555, now seen corresponding path program 1 times [2024-11-16 03:55:38,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:38,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945673433] [2024-11-16 03:55:38,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:38,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:38,423 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-16 03:55:38,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:38,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945673433] [2024-11-16 03:55:38,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945673433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:38,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:38,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:38,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984639628] [2024-11-16 03:55:38,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:38,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:38,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:38,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:38,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:38,426 INFO L87 Difference]: Start difference. First operand 146645 states and 159037 transitions. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:41,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:41,960 INFO L93 Difference]: Finished difference Result 333141 states and 361222 transitions. [2024-11-16 03:55:41,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:41,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 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 646 [2024-11-16 03:55:41,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:41,962 INFO L225 Difference]: With dead ends: 333141 [2024-11-16 03:55:41,962 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:55:42,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:42,391 INFO L432 NwaCegarLoop]: 1277 mSDtfsCounter, 439 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 2798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:42,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1285 Invalid, 2798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 03:55:42,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:55:42,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:55:42,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:42,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:55:42,393 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 646 [2024-11-16 03:55:42,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:42,393 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:55:42,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:42,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:55:42,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:55:42,396 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:55:42,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:55:42,400 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:42,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:55:43,823 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:55:43,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:55:43 BoogieIcfgContainer [2024-11-16 03:55:43,837 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:55:43,837 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:55:43,837 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:55:43,837 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:55:43,838 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:54:42" (3/4) ... [2024-11-16 03:55:43,840 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:55:43,890 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-16 03:55:43,895 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 03:55:43,901 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:55:43,906 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:55:44,295 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:55:44,296 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:55:44,297 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:55:44,297 INFO L158 Benchmark]: Toolchain (without parser) took 68914.31ms. Allocated memory was 174.1MB in the beginning and 10.7GB in the end (delta: 10.5GB). Free memory was 127.3MB in the beginning and 9.1GB in the end (delta: -9.0GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2024-11-16 03:55:44,297 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:55:44,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1673.28ms. Allocated memory was 174.1MB in the beginning and 283.1MB in the end (delta: 109.1MB). Free memory was 127.3MB in the beginning and 209.7MB in the end (delta: -82.4MB). Peak memory consumption was 128.4MB. Max. memory is 16.1GB. [2024-11-16 03:55:44,298 INFO L158 Benchmark]: Boogie Procedure Inliner took 379.18ms. Allocated memory is still 283.1MB. Free memory was 209.7MB in the beginning and 139.5MB in the end (delta: 70.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2024-11-16 03:55:44,298 INFO L158 Benchmark]: Boogie Preprocessor took 609.73ms. Allocated memory is still 283.1MB. Free memory was 139.5MB in the beginning and 165.7MB in the end (delta: -26.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2024-11-16 03:55:44,299 INFO L158 Benchmark]: IcfgBuilder took 4393.73ms. Allocated memory was 283.1MB in the beginning and 555.7MB in the end (delta: 272.6MB). Free memory was 165.7MB in the beginning and 407.8MB in the end (delta: -242.1MB). Peak memory consumption was 264.3MB. Max. memory is 16.1GB. [2024-11-16 03:55:44,299 INFO L158 Benchmark]: TraceAbstraction took 61391.97ms. Allocated memory was 555.7MB in the beginning and 10.7GB in the end (delta: 10.2GB). Free memory was 406.8MB in the beginning and 8.6GB in the end (delta: -8.2GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2024-11-16 03:55:44,300 INFO L158 Benchmark]: Witness Printer took 459.49ms. Allocated memory is still 10.7GB. Free memory was 8.6GB in the beginning and 9.1GB in the end (delta: -458.2MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2024-11-16 03:55:44,301 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1673.28ms. Allocated memory was 174.1MB in the beginning and 283.1MB in the end (delta: 109.1MB). Free memory was 127.3MB in the beginning and 209.7MB in the end (delta: -82.4MB). Peak memory consumption was 128.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 379.18ms. Allocated memory is still 283.1MB. Free memory was 209.7MB in the beginning and 139.5MB in the end (delta: 70.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 609.73ms. Allocated memory is still 283.1MB. Free memory was 139.5MB in the beginning and 165.7MB in the end (delta: -26.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * IcfgBuilder took 4393.73ms. Allocated memory was 283.1MB in the beginning and 555.7MB in the end (delta: 272.6MB). Free memory was 165.7MB in the beginning and 407.8MB in the end (delta: -242.1MB). Peak memory consumption was 264.3MB. Max. memory is 16.1GB. * TraceAbstraction took 61391.97ms. Allocated memory was 555.7MB in the beginning and 10.7GB in the end (delta: 10.2GB). Free memory was 406.8MB in the beginning and 8.6GB in the end (delta: -8.2GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. * Witness Printer took 459.49ms. Allocated memory is still 10.7GB. Free memory was 8.6GB in the beginning and 9.1GB in the end (delta: -458.2MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 187]: 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, 821 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.9s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 44.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12725 SdHoareTripleChecker+Valid, 38.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12725 mSDsluCounter, 10534 SdHoareTripleChecker+Invalid, 31.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 163 mSDsCounter, 7678 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36321 IncrementalHoareTripleChecker+Invalid, 43999 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7678 mSolverCounterUnsat, 10371 mSDtfsCounter, 36321 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1178 GetRequests, 1153 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146645occurred in iteration=13, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 21814 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 5821 NumberOfCodeBlocks, 5821 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 5804 ConstructedInterpolants, 0 QuantifiedInterpolants, 17998 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1496 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 5655/5919 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: 4828]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:55:44,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE