./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label54.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/Problem15_label54.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 4c52ec07a463523a7400028d070720f187a378d4cbca4c6c694254a0e1ef7e72 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:44:25,953 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:44:26,048 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:44:26,058 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:44:26,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:44:26,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:44:26,104 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:44:26,108 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:44:26,109 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:44:26,109 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:44:26,109 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:44:26,109 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:44:26,110 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:44:26,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:44:26,110 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:44:26,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:44:26,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:44:26,111 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:44:26,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:44:26,111 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:44:26,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:44:26,115 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:44:26,115 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:44:26,115 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:44:26,116 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:44:26,116 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:44:26,116 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:44:26,116 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:44:26,117 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:44:26,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:44:26,117 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:44:26,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:44:26,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:44:26,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:44:26,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:44:26,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:44:26,119 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:44:26,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:44:26,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:44:26,120 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:44:26,120 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:44:26,120 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:44:26,120 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c52ec07a463523a7400028d070720f187a378d4cbca4c6c694254a0e1ef7e72 [2024-11-09 19:44:26,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:44:26,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:44:26,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:44:26,373 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:44:26,374 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:44:26,375 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label54.c [2024-11-09 19:44:27,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:44:28,120 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:44:28,120 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label54.c [2024-11-09 19:44:28,145 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0189f6107/93f9fe2f909a407f8a23f9348cadabb3/FLAGacdeadaf1 [2024-11-09 19:44:28,381 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0189f6107/93f9fe2f909a407f8a23f9348cadabb3 [2024-11-09 19:44:28,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:44:28,386 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:44:28,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:44:28,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:44:28,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:44:28,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:44:28" (1/1) ... [2024-11-09 19:44:28,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ea9f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:28, skipping insertion in model container [2024-11-09 19:44:28,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:44:28" (1/1) ... [2024-11-09 19:44:28,527 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:44:28,708 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/Problem15_label54.c[4982,4995] [2024-11-09 19:44:28,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:44:29,003 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:44:29,025 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/Problem15_label54.c[4982,4995] [2024-11-09 19:44:29,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:44:29,191 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:44:29,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29 WrapperNode [2024-11-09 19:44:29,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:44:29,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:44:29,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:44:29,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:44:29,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29" (1/1) ... [2024-11-09 19:44:29,233 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29" (1/1) ... [2024-11-09 19:44:29,388 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-09 19:44:29,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:44:29,389 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:44:29,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:44:29,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:44:29,397 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29" (1/1) ... [2024-11-09 19:44:29,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29" (1/1) ... [2024-11-09 19:44:29,415 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29" (1/1) ... [2024-11-09 19:44:29,458 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]. [2024-11-09 19:44:29,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29" (1/1) ... [2024-11-09 19:44:29,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29" (1/1) ... [2024-11-09 19:44:29,550 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29" (1/1) ... [2024-11-09 19:44:29,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29" (1/1) ... [2024-11-09 19:44:29,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29" (1/1) ... [2024-11-09 19:44:29,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29" (1/1) ... [2024-11-09 19:44:29,590 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:44:29,591 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:44:29,592 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:44:29,592 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:44:29,593 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29" (1/1) ... [2024-11-09 19:44:29,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:44:29,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:44:29,619 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) [2024-11-09 19:44:29,625 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 [2024-11-09 19:44:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:44:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:44:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:44:29,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:44:29,740 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:44:29,742 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:44:31,895 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665: havoc calculate_output_#t~ret7#1; [2024-11-09 19:44:32,035 INFO L? ?]: Removed 697 outVars from TransFormulas that were not future-live. [2024-11-09 19:44:32,036 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:44:32,061 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:44:32,062 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:44:32,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:44:32 BoogieIcfgContainer [2024-11-09 19:44:32,062 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:44:32,068 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:44:32,069 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:44:32,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:44:32,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:44:28" (1/3) ... [2024-11-09 19:44:32,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7222218f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:44:32, skipping insertion in model container [2024-11-09 19:44:32,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:29" (2/3) ... [2024-11-09 19:44:32,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7222218f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:44:32, skipping insertion in model container [2024-11-09 19:44:32,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:44:32" (3/3) ... [2024-11-09 19:44:32,074 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label54.c [2024-11-09 19:44:32,090 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:44:32,091 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:44:32,162 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:44:32,169 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;@14ce478e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:44:32,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:44:32,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 427 states, 425 states have (on average 2.3176470588235296) internal successors, (985), 426 states have internal predecessors, (985), 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) [2024-11-09 19:44:32,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 19:44:32,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:32,186 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] [2024-11-09 19:44:32,186 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:32,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:32,191 INFO L85 PathProgramCache]: Analyzing trace with hash 32139237, now seen corresponding path program 1 times [2024-11-09 19:44:32,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:32,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709008530] [2024-11-09 19:44:32,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:32,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:44:32,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:32,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709008530] [2024-11-09 19:44:32,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709008530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:32,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:32,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:44:32,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481783727] [2024-11-09 19:44:32,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:32,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:32,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:32,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:32,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:32,568 INFO L87 Difference]: Start difference. First operand has 427 states, 425 states have (on average 2.3176470588235296) internal successors, (985), 426 states have internal predecessors, (985), 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 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2024-11-09 19:44:34,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:34,906 INFO L93 Difference]: Finished difference Result 1197 states and 2859 transitions. [2024-11-09 19:44:34,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:34,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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 42 [2024-11-09 19:44:34,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:34,921 INFO L225 Difference]: With dead ends: 1197 [2024-11-09 19:44:34,921 INFO L226 Difference]: Without dead ends: 691 [2024-11-09 19:44:34,924 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 [2024-11-09 19:44:34,927 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 563 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:34,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 234 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 19:44:34,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-09 19:44:34,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 683. [2024-11-09 19:44:34,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 682 states have (on average 2.2873900293255134) internal successors, (1560), 682 states have internal predecessors, (1560), 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) [2024-11-09 19:44:35,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1560 transitions. [2024-11-09 19:44:35,003 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1560 transitions. Word has length 42 [2024-11-09 19:44:35,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:35,004 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 1560 transitions. [2024-11-09 19:44:35,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2024-11-09 19:44:35,005 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1560 transitions. [2024-11-09 19:44:35,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-09 19:44:35,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:35,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:44:35,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:44:35,010 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:35,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:35,010 INFO L85 PathProgramCache]: Analyzing trace with hash -72091270, now seen corresponding path program 1 times [2024-11-09 19:44:35,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:35,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324508679] [2024-11-09 19:44:35,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:35,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:44:35,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:35,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324508679] [2024-11-09 19:44:35,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324508679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:35,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:35,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:44:35,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974165296] [2024-11-09 19:44:35,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:35,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:35,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:35,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:35,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:35,233 INFO L87 Difference]: Start difference. First operand 683 states and 1560 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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) [2024-11-09 19:44:37,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:37,005 INFO L93 Difference]: Finished difference Result 1970 states and 4570 transitions. [2024-11-09 19:44:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:37,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 111 [2024-11-09 19:44:37,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:37,010 INFO L225 Difference]: With dead ends: 1970 [2024-11-09 19:44:37,010 INFO L226 Difference]: Without dead ends: 1289 [2024-11-09 19:44:37,011 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 [2024-11-09 19:44:37,012 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 479 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:37,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 343 Invalid, 1592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:44:37,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-11-09 19:44:37,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1286. [2024-11-09 19:44:37,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 2.1151750972762646) internal successors, (2718), 1285 states have internal predecessors, (2718), 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) [2024-11-09 19:44:37,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 2718 transitions. [2024-11-09 19:44:37,034 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 2718 transitions. Word has length 111 [2024-11-09 19:44:37,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:37,035 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 2718 transitions. [2024-11-09 19:44:37,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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) [2024-11-09 19:44:37,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 2718 transitions. [2024-11-09 19:44:37,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 19:44:37,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:37,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:44:37,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:44:37,037 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:37,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:37,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1077071518, now seen corresponding path program 1 times [2024-11-09 19:44:37,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:37,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061154060] [2024-11-09 19:44:37,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:37,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:44:37,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:37,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061154060] [2024-11-09 19:44:37,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061154060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:37,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:37,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:44:37,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977522321] [2024-11-09 19:44:37,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:37,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:37,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:37,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:37,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:37,353 INFO L87 Difference]: Start difference. First operand 1286 states and 2718 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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) [2024-11-09 19:44:38,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:38,786 INFO L93 Difference]: Finished difference Result 2870 states and 6002 transitions. [2024-11-09 19:44:38,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:38,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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 119 [2024-11-09 19:44:38,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:38,793 INFO L225 Difference]: With dead ends: 2870 [2024-11-09 19:44:38,794 INFO L226 Difference]: Without dead ends: 1586 [2024-11-09 19:44:38,795 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 [2024-11-09 19:44:38,797 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 457 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:38,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 363 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:44:38,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2024-11-09 19:44:38,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2024-11-09 19:44:38,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 2.0542586750788643) internal successors, (3256), 1585 states have internal predecessors, (3256), 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) [2024-11-09 19:44:38,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 3256 transitions. [2024-11-09 19:44:38,823 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 3256 transitions. Word has length 119 [2024-11-09 19:44:38,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:38,824 INFO L471 AbstractCegarLoop]: Abstraction has 1586 states and 3256 transitions. [2024-11-09 19:44:38,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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) [2024-11-09 19:44:38,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 3256 transitions. [2024-11-09 19:44:38,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-09 19:44:38,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:38,833 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, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:44:38,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:44:38,833 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:38,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:38,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1948890550, now seen corresponding path program 1 times [2024-11-09 19:44:38,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:38,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970782478] [2024-11-09 19:44:38,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:38,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:39,002 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-09 19:44:39,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:39,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970782478] [2024-11-09 19:44:39,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970782478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:39,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:39,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:44:39,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322592044] [2024-11-09 19:44:39,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:39,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:39,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:39,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:39,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:39,006 INFO L87 Difference]: Start difference. First operand 1586 states and 3256 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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) [2024-11-09 19:44:40,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:40,657 INFO L93 Difference]: Finished difference Result 4081 states and 8583 transitions. [2024-11-09 19:44:40,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:40,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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 203 [2024-11-09 19:44:40,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:40,668 INFO L225 Difference]: With dead ends: 4081 [2024-11-09 19:44:40,668 INFO L226 Difference]: Without dead ends: 2797 [2024-11-09 19:44:40,670 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 [2024-11-09 19:44:40,670 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 490 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:40,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 365 Invalid, 1561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:44:40,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2024-11-09 19:44:40,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2791. [2024-11-09 19:44:40,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2790 states have (on average 1.9971326164874552) internal successors, (5572), 2790 states have internal predecessors, (5572), 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) [2024-11-09 19:44:40,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 5572 transitions. [2024-11-09 19:44:40,708 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 5572 transitions. Word has length 203 [2024-11-09 19:44:40,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:40,708 INFO L471 AbstractCegarLoop]: Abstraction has 2791 states and 5572 transitions. [2024-11-09 19:44:40,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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) [2024-11-09 19:44:40,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 5572 transitions. [2024-11-09 19:44:40,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-09 19:44:40,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:40,710 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:44:40,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:44:40,710 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:40,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:40,711 INFO L85 PathProgramCache]: Analyzing trace with hash -187633250, now seen corresponding path program 1 times [2024-11-09 19:44:40,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:40,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623163876] [2024-11-09 19:44:40,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:40,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:41,230 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 77 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:44:41,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:41,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623163876] [2024-11-09 19:44:41,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623163876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:44:41,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169113174] [2024-11-09 19:44:41,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:41,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:44:41,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:44:41,233 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) [2024-11-09 19:44:41,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:44:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:41,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 19:44:41,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:44:41,865 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 129 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:44:41,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:44:42,354 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 129 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:44:42,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169113174] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 19:44:42,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 19:44:42,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 19:44:42,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771777870] [2024-11-09 19:44:42,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 19:44:42,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 19:44:42,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:42,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 19:44:42,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-09 19:44:42,357 INFO L87 Difference]: Start difference. First operand 2791 states and 5572 transitions. Second operand has 10 states, 10 states have (on average 52.7) internal successors, (527), 9 states have internal predecessors, (527), 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) [2024-11-09 19:44:48,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:48,917 INFO L93 Difference]: Finished difference Result 11202 states and 23233 transitions. [2024-11-09 19:44:48,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 19:44:48,918 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 52.7) internal successors, (527), 9 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2024-11-09 19:44:48,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:48,987 INFO L225 Difference]: With dead ends: 11202 [2024-11-09 19:44:48,987 INFO L226 Difference]: Without dead ends: 5801 [2024-11-09 19:44:48,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2024-11-09 19:44:48,994 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 8029 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 8180 mSolverCounterSat, 1249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8029 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 9429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1249 IncrementalHoareTripleChecker+Valid, 8180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:48,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8029 Valid, 268 Invalid, 9429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1249 Valid, 8180 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-09 19:44:49,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5801 states. [2024-11-09 19:44:49,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5801 to 5496. [2024-11-09 19:44:49,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5496 states, 5495 states have (on average 1.8873521383075522) internal successors, (10371), 5495 states have internal predecessors, (10371), 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) [2024-11-09 19:44:49,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5496 states to 5496 states and 10371 transitions. [2024-11-09 19:44:49,118 INFO L78 Accepts]: Start accepts. Automaton has 5496 states and 10371 transitions. Word has length 211 [2024-11-09 19:44:49,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:49,118 INFO L471 AbstractCegarLoop]: Abstraction has 5496 states and 10371 transitions. [2024-11-09 19:44:49,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.7) internal successors, (527), 9 states have internal predecessors, (527), 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) [2024-11-09 19:44:49,119 INFO L276 IsEmpty]: Start isEmpty. Operand 5496 states and 10371 transitions. [2024-11-09 19:44:49,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-09 19:44:49,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:49,124 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:44:49,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:44:49,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:44:49,330 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:49,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:49,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1278454585, now seen corresponding path program 1 times [2024-11-09 19:44:49,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:49,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729135949] [2024-11-09 19:44:49,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:49,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:49,711 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 19:44:49,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:49,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729135949] [2024-11-09 19:44:49,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729135949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:49,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:49,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:49,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180189170] [2024-11-09 19:44:49,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:49,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:49,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:49,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:49,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:49,713 INFO L87 Difference]: Start difference. First operand 5496 states and 10371 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2024-11-09 19:44:51,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:51,068 INFO L93 Difference]: Finished difference Result 12493 states and 23665 transitions. [2024-11-09 19:44:51,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:51,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-11-09 19:44:51,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:51,086 INFO L225 Difference]: With dead ends: 12493 [2024-11-09 19:44:51,087 INFO L226 Difference]: Without dead ends: 6999 [2024-11-09 19:44:51,092 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 [2024-11-09 19:44:51,093 INFO L432 NwaCegarLoop]: 743 mSDtfsCounter, 521 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:51,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 788 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:44:51,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6999 states. [2024-11-09 19:44:51,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6999 to 6699. [2024-11-09 19:44:51,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6699 states, 6698 states have (on average 1.8668259181845328) internal successors, (12504), 6698 states have internal predecessors, (12504), 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) [2024-11-09 19:44:51,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 12504 transitions. [2024-11-09 19:44:51,184 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 12504 transitions. Word has length 390 [2024-11-09 19:44:51,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:51,185 INFO L471 AbstractCegarLoop]: Abstraction has 6699 states and 12504 transitions. [2024-11-09 19:44:51,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2024-11-09 19:44:51,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 12504 transitions. [2024-11-09 19:44:51,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-11-09 19:44:51,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:51,188 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:44:51,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:44:51,189 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:51,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:51,190 INFO L85 PathProgramCache]: Analyzing trace with hash -679508515, now seen corresponding path program 1 times [2024-11-09 19:44:51,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:51,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265737550] [2024-11-09 19:44:51,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:51,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:51,418 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:44:51,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:51,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265737550] [2024-11-09 19:44:51,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265737550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:51,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:51,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:51,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531458932] [2024-11-09 19:44:51,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:51,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:51,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:51,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:51,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:51,421 INFO L87 Difference]: Start difference. First operand 6699 states and 12504 transitions. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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) [2024-11-09 19:44:52,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:52,746 INFO L93 Difference]: Finished difference Result 16107 states and 30252 transitions. [2024-11-09 19:44:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:52,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 407 [2024-11-09 19:44:52,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:52,767 INFO L225 Difference]: With dead ends: 16107 [2024-11-09 19:44:52,767 INFO L226 Difference]: Without dead ends: 9410 [2024-11-09 19:44:52,773 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 [2024-11-09 19:44:52,774 INFO L432 NwaCegarLoop]: 759 mSDtfsCounter, 469 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:52,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 798 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:44:52,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9410 states. [2024-11-09 19:44:52,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9410 to 8807. [2024-11-09 19:44:52,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8807 states, 8806 states have (on average 1.846354758119464) internal successors, (16259), 8806 states have internal predecessors, (16259), 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) [2024-11-09 19:44:52,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8807 states to 8807 states and 16259 transitions. [2024-11-09 19:44:52,892 INFO L78 Accepts]: Start accepts. Automaton has 8807 states and 16259 transitions. Word has length 407 [2024-11-09 19:44:52,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:52,893 INFO L471 AbstractCegarLoop]: Abstraction has 8807 states and 16259 transitions. [2024-11-09 19:44:52,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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) [2024-11-09 19:44:52,893 INFO L276 IsEmpty]: Start isEmpty. Operand 8807 states and 16259 transitions. [2024-11-09 19:44:52,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-09 19:44:52,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:52,897 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:44:52,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:44:52,897 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:52,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:52,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1990664241, now seen corresponding path program 1 times [2024-11-09 19:44:52,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:52,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460435643] [2024-11-09 19:44:52,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:52,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-09 19:44:53,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:53,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460435643] [2024-11-09 19:44:53,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460435643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:53,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:53,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:53,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064370338] [2024-11-09 19:44:53,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:53,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:53,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:53,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:53,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:53,173 INFO L87 Difference]: Start difference. First operand 8807 states and 16259 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2024-11-09 19:44:54,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:54,447 INFO L93 Difference]: Finished difference Result 20015 states and 37190 transitions. [2024-11-09 19:44:54,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:54,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 421 [2024-11-09 19:44:54,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:54,465 INFO L225 Difference]: With dead ends: 20015 [2024-11-09 19:44:54,465 INFO L226 Difference]: Without dead ends: 11210 [2024-11-09 19:44:54,474 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 [2024-11-09 19:44:54,475 INFO L432 NwaCegarLoop]: 733 mSDtfsCounter, 514 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:54,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 772 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:44:54,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11210 states. [2024-11-09 19:44:54,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11210 to 11204. [2024-11-09 19:44:54,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11204 states, 11203 states have (on average 1.833437472105686) internal successors, (20540), 11203 states have internal predecessors, (20540), 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) [2024-11-09 19:44:54,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11204 states to 11204 states and 20540 transitions. [2024-11-09 19:44:54,597 INFO L78 Accepts]: Start accepts. Automaton has 11204 states and 20540 transitions. Word has length 421 [2024-11-09 19:44:54,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:54,598 INFO L471 AbstractCegarLoop]: Abstraction has 11204 states and 20540 transitions. [2024-11-09 19:44:54,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2024-11-09 19:44:54,598 INFO L276 IsEmpty]: Start isEmpty. Operand 11204 states and 20540 transitions. [2024-11-09 19:44:54,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2024-11-09 19:44:54,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:54,606 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:44:54,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:44:54,606 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:54,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:54,607 INFO L85 PathProgramCache]: Analyzing trace with hash -938605637, now seen corresponding path program 1 times [2024-11-09 19:44:54,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:54,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672740607] [2024-11-09 19:44:54,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:54,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:55,000 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-09 19:44:55,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:55,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672740607] [2024-11-09 19:44:55,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672740607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:55,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:55,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:55,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215686667] [2024-11-09 19:44:55,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:55,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:55,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:55,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:55,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:55,003 INFO L87 Difference]: Start difference. First operand 11204 states and 20540 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2024-11-09 19:44:56,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:56,143 INFO L93 Difference]: Finished difference Result 22404 states and 41102 transitions. [2024-11-09 19:44:56,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:56,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 546 [2024-11-09 19:44:56,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:56,160 INFO L225 Difference]: With dead ends: 22404 [2024-11-09 19:44:56,160 INFO L226 Difference]: Without dead ends: 11502 [2024-11-09 19:44:56,168 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 [2024-11-09 19:44:56,169 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 669 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:56,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 70 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:44:56,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11502 states. [2024-11-09 19:44:56,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11502 to 11202. [2024-11-09 19:44:56,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11202 states, 11201 states have (on average 1.833407731452549) internal successors, (20536), 11201 states have internal predecessors, (20536), 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) [2024-11-09 19:44:56,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11202 states to 11202 states and 20536 transitions. [2024-11-09 19:44:56,403 INFO L78 Accepts]: Start accepts. Automaton has 11202 states and 20536 transitions. Word has length 546 [2024-11-09 19:44:56,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:56,404 INFO L471 AbstractCegarLoop]: Abstraction has 11202 states and 20536 transitions. [2024-11-09 19:44:56,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2024-11-09 19:44:56,404 INFO L276 IsEmpty]: Start isEmpty. Operand 11202 states and 20536 transitions. [2024-11-09 19:44:56,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2024-11-09 19:44:56,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:56,407 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:44:56,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:44:56,408 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:56,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:56,409 INFO L85 PathProgramCache]: Analyzing trace with hash 489702427, now seen corresponding path program 1 times [2024-11-09 19:44:56,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:56,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214628470] [2024-11-09 19:44:56,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:56,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:56,874 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-09 19:44:56,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:56,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214628470] [2024-11-09 19:44:56,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214628470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:56,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:56,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:56,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419767948] [2024-11-09 19:44:56,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:56,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:56,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:56,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:56,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:56,877 INFO L87 Difference]: Start difference. First operand 11202 states and 20536 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2024-11-09 19:44:58,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:58,126 INFO L93 Difference]: Finished difference Result 26031 states and 47771 transitions. [2024-11-09 19:44:58,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:58,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 572 [2024-11-09 19:44:58,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:58,149 INFO L225 Difference]: With dead ends: 26031 [2024-11-09 19:44:58,150 INFO L226 Difference]: Without dead ends: 15131 [2024-11-09 19:44:58,160 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 [2024-11-09 19:44:58,160 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 529 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:58,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 209 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:44:58,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15131 states. [2024-11-09 19:44:58,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15131 to 11804. [2024-11-09 19:44:58,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11804 states, 11803 states have (on average 1.8325849360332118) internal successors, (21630), 11803 states have internal predecessors, (21630), 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) [2024-11-09 19:44:58,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11804 states to 11804 states and 21630 transitions. [2024-11-09 19:44:58,342 INFO L78 Accepts]: Start accepts. Automaton has 11804 states and 21630 transitions. Word has length 572 [2024-11-09 19:44:58,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:58,343 INFO L471 AbstractCegarLoop]: Abstraction has 11804 states and 21630 transitions. [2024-11-09 19:44:58,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2024-11-09 19:44:58,343 INFO L276 IsEmpty]: Start isEmpty. Operand 11804 states and 21630 transitions. [2024-11-09 19:44:58,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2024-11-09 19:44:58,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:58,347 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:44:58,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:44:58,347 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:58,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:58,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1952158569, now seen corresponding path program 1 times [2024-11-09 19:44:58,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:58,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56149533] [2024-11-09 19:44:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:58,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:58,570 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-11-09 19:44:58,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:58,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56149533] [2024-11-09 19:44:58,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56149533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:58,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:58,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:58,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878631565] [2024-11-09 19:44:58,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:58,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:58,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:58,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:58,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:58,573 INFO L87 Difference]: Start difference. First operand 11804 states and 21630 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2024-11-09 19:45:00,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:00,006 INFO L93 Difference]: Finished difference Result 26305 states and 48321 transitions. [2024-11-09 19:45:00,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:00,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 583 [2024-11-09 19:45:00,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:00,030 INFO L225 Difference]: With dead ends: 26305 [2024-11-09 19:45:00,031 INFO L226 Difference]: Without dead ends: 14503 [2024-11-09 19:45:00,039 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 [2024-11-09 19:45:00,039 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 537 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:00,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 702 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:45:00,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14503 states. [2024-11-09 19:45:00,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14503 to 14503. [2024-11-09 19:45:00,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14503 states, 14502 states have (on average 1.8280926768721555) internal successors, (26511), 14502 states have internal predecessors, (26511), 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) [2024-11-09 19:45:00,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14503 states to 14503 states and 26511 transitions. [2024-11-09 19:45:00,240 INFO L78 Accepts]: Start accepts. Automaton has 14503 states and 26511 transitions. Word has length 583 [2024-11-09 19:45:00,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:00,241 INFO L471 AbstractCegarLoop]: Abstraction has 14503 states and 26511 transitions. [2024-11-09 19:45:00,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2024-11-09 19:45:00,242 INFO L276 IsEmpty]: Start isEmpty. Operand 14503 states and 26511 transitions. [2024-11-09 19:45:00,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 737 [2024-11-09 19:45:00,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:00,254 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:00,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:45:00,255 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:00,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:00,255 INFO L85 PathProgramCache]: Analyzing trace with hash 645472242, now seen corresponding path program 1 times [2024-11-09 19:45:00,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:00,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851878624] [2024-11-09 19:45:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:00,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:00,757 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 543 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-09 19:45:00,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:00,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851878624] [2024-11-09 19:45:00,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851878624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:00,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:00,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:00,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880263820] [2024-11-09 19:45:00,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:00,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:00,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:00,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:00,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:00,761 INFO L87 Difference]: Start difference. First operand 14503 states and 26511 transitions. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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) [2024-11-09 19:45:02,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:02,072 INFO L93 Difference]: Finished difference Result 31704 states and 58232 transitions. [2024-11-09 19:45:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:02,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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 736 [2024-11-09 19:45:02,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:02,095 INFO L225 Difference]: With dead ends: 31704 [2024-11-09 19:45:02,095 INFO L226 Difference]: Without dead ends: 17503 [2024-11-09 19:45:02,104 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 [2024-11-09 19:45:02,105 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 392 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:02,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 750 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:45:02,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17503 states. [2024-11-09 19:45:02,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17503 to 17203. [2024-11-09 19:45:02,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17203 states, 17202 states have (on average 1.823043832112545) internal successors, (31360), 17202 states have internal predecessors, (31360), 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) [2024-11-09 19:45:02,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17203 states to 17203 states and 31360 transitions. [2024-11-09 19:45:02,265 INFO L78 Accepts]: Start accepts. Automaton has 17203 states and 31360 transitions. Word has length 736 [2024-11-09 19:45:02,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:02,266 INFO L471 AbstractCegarLoop]: Abstraction has 17203 states and 31360 transitions. [2024-11-09 19:45:02,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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) [2024-11-09 19:45:02,266 INFO L276 IsEmpty]: Start isEmpty. Operand 17203 states and 31360 transitions. [2024-11-09 19:45:02,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 740 [2024-11-09 19:45:02,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:02,273 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-09 19:45:02,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:45:02,274 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:02,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:02,274 INFO L85 PathProgramCache]: Analyzing trace with hash -5498710, now seen corresponding path program 1 times [2024-11-09 19:45:02,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:02,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333520782] [2024-11-09 19:45:02,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:02,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:02,652 INFO L134 CoverageAnalysis]: Checked inductivity of 947 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2024-11-09 19:45:02,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:02,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333520782] [2024-11-09 19:45:02,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333520782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:02,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:02,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:02,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878046033] [2024-11-09 19:45:02,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:02,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:02,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:02,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:02,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:02,654 INFO L87 Difference]: Start difference. First operand 17203 states and 31360 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2024-11-09 19:45:03,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:03,839 INFO L93 Difference]: Finished difference Result 33498 states and 61099 transitions. [2024-11-09 19:45:03,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:03,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 739 [2024-11-09 19:45:03,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:03,860 INFO L225 Difference]: With dead ends: 33498 [2024-11-09 19:45:03,860 INFO L226 Difference]: Without dead ends: 16297 [2024-11-09 19:45:03,875 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 [2024-11-09 19:45:03,879 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 518 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:03,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 736 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:45:03,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16297 states. [2024-11-09 19:45:04,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16297 to 16296. [2024-11-09 19:45:04,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16296 states, 16295 states have (on average 1.8055845351334765) internal successors, (29422), 16295 states have internal predecessors, (29422), 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) [2024-11-09 19:45:04,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16296 states to 16296 states and 29422 transitions. [2024-11-09 19:45:04,174 INFO L78 Accepts]: Start accepts. Automaton has 16296 states and 29422 transitions. Word has length 739 [2024-11-09 19:45:04,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:04,176 INFO L471 AbstractCegarLoop]: Abstraction has 16296 states and 29422 transitions. [2024-11-09 19:45:04,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2024-11-09 19:45:04,180 INFO L276 IsEmpty]: Start isEmpty. Operand 16296 states and 29422 transitions. [2024-11-09 19:45:04,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 765 [2024-11-09 19:45:04,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:04,199 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:45:04,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 19:45:04,202 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:04,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:04,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1240192716, now seen corresponding path program 1 times [2024-11-09 19:45:04,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:04,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343395367] [2024-11-09 19:45:04,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:04,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:04,511 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2024-11-09 19:45:04,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:04,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343395367] [2024-11-09 19:45:04,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343395367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:04,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:04,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:04,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605753058] [2024-11-09 19:45:04,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:04,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:04,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:04,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:04,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:04,514 INFO L87 Difference]: Start difference. First operand 16296 states and 29422 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2024-11-09 19:45:05,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:05,682 INFO L93 Difference]: Finished difference Result 34390 states and 62134 transitions. [2024-11-09 19:45:05,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:05,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 764 [2024-11-09 19:45:05,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:05,704 INFO L225 Difference]: With dead ends: 34390 [2024-11-09 19:45:05,705 INFO L226 Difference]: Without dead ends: 18396 [2024-11-09 19:45:05,715 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 [2024-11-09 19:45:05,716 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 508 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:05,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 205 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:45:05,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18396 states. [2024-11-09 19:45:05,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18396 to 14792. [2024-11-09 19:45:05,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14792 states, 14791 states have (on average 1.8040024339125145) internal successors, (26683), 14791 states have internal predecessors, (26683), 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) [2024-11-09 19:45:05,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14792 states to 14792 states and 26683 transitions. [2024-11-09 19:45:05,864 INFO L78 Accepts]: Start accepts. Automaton has 14792 states and 26683 transitions. Word has length 764 [2024-11-09 19:45:05,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:05,865 INFO L471 AbstractCegarLoop]: Abstraction has 14792 states and 26683 transitions. [2024-11-09 19:45:05,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2024-11-09 19:45:05,865 INFO L276 IsEmpty]: Start isEmpty. Operand 14792 states and 26683 transitions. [2024-11-09 19:45:05,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 927 [2024-11-09 19:45:05,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:05,880 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:05,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:45:05,880 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:05,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:05,881 INFO L85 PathProgramCache]: Analyzing trace with hash -134968904, now seen corresponding path program 1 times [2024-11-09 19:45:05,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:05,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973647976] [2024-11-09 19:45:05,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:05,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:06,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 739 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2024-11-09 19:45:06,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:06,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973647976] [2024-11-09 19:45:06,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973647976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:06,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:06,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:06,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962357268] [2024-11-09 19:45:06,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:06,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:06,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:06,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:06,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:06,568 INFO L87 Difference]: Start difference. First operand 14792 states and 26683 transitions. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2024-11-09 19:45:07,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:07,968 INFO L93 Difference]: Finished difference Result 34995 states and 63139 transitions. [2024-11-09 19:45:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:07,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 926 [2024-11-09 19:45:07,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:08,000 INFO L225 Difference]: With dead ends: 34995 [2024-11-09 19:45:08,000 INFO L226 Difference]: Without dead ends: 20505 [2024-11-09 19:45:08,013 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 [2024-11-09 19:45:08,014 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 502 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:08,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 144 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:45:08,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20505 states. [2024-11-09 19:45:08,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20505 to 16592. [2024-11-09 19:45:08,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16592 states, 16591 states have (on average 1.804653125188355) internal successors, (29941), 16591 states have internal predecessors, (29941), 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) [2024-11-09 19:45:08,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16592 states to 16592 states and 29941 transitions. [2024-11-09 19:45:08,272 INFO L78 Accepts]: Start accepts. Automaton has 16592 states and 29941 transitions. Word has length 926 [2024-11-09 19:45:08,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:08,273 INFO L471 AbstractCegarLoop]: Abstraction has 16592 states and 29941 transitions. [2024-11-09 19:45:08,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2024-11-09 19:45:08,273 INFO L276 IsEmpty]: Start isEmpty. Operand 16592 states and 29941 transitions. [2024-11-09 19:45:08,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1606 [2024-11-09 19:45:08,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:08,297 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-09 19:45:08,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 19:45:08,298 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:08,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:08,298 INFO L85 PathProgramCache]: Analyzing trace with hash -876810740, now seen corresponding path program 1 times [2024-11-09 19:45:08,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:08,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882002878] [2024-11-09 19:45:08,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:08,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:08,994 INFO L134 CoverageAnalysis]: Checked inductivity of 4606 backedges. 2892 proven. 0 refuted. 0 times theorem prover too weak. 1714 trivial. 0 not checked. [2024-11-09 19:45:08,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:08,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882002878] [2024-11-09 19:45:08,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882002878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:08,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:08,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:08,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306104933] [2024-11-09 19:45:08,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:08,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:08,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:08,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:08,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:08,996 INFO L87 Difference]: Start difference. First operand 16592 states and 29941 transitions. Second operand has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 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) [2024-11-09 19:45:09,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:09,997 INFO L93 Difference]: Finished difference Result 28028 states and 50480 transitions. [2024-11-09 19:45:09,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:09,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 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 1605 [2024-11-09 19:45:09,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:09,999 INFO L225 Difference]: With dead ends: 28028 [2024-11-09 19:45:09,999 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 19:45:10,009 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 [2024-11-09 19:45:10,010 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 304 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:10,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 116 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 19:45:10,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 19:45:10,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 19:45:10,010 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) [2024-11-09 19:45:10,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 19:45:10,011 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1605 [2024-11-09 19:45:10,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:10,011 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 19:45:10,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 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) [2024-11-09 19:45:10,011 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 19:45:10,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 19:45:10,013 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 19:45:10,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:45:10,016 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:10,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 19:45:10,963 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 19:45:10,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:45:10 BoogieIcfgContainer [2024-11-09 19:45:10,979 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 19:45:10,979 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 19:45:10,979 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 19:45:10,979 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 19:45:10,980 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:44:32" (3/4) ... [2024-11-09 19:45:10,982 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 19:45:11,016 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 19:45:11,019 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 19:45:11,021 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 19:45:11,024 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 19:45:11,216 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 19:45:11,217 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 19:45:11,217 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 19:45:11,217 INFO L158 Benchmark]: Toolchain (without parser) took 42831.06ms. Allocated memory was 176.2MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 102.0MB in the beginning and 539.2MB in the end (delta: -437.2MB). Peak memory consumption was 972.7MB. Max. memory is 16.1GB. [2024-11-09 19:45:11,218 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory is still 67.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 19:45:11,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 803.66ms. Allocated memory is still 176.2MB. Free memory was 101.9MB in the beginning and 68.8MB in the end (delta: 33.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-09 19:45:11,219 INFO L158 Benchmark]: Boogie Procedure Inliner took 195.56ms. Allocated memory is still 176.2MB. Free memory was 68.8MB in the beginning and 113.0MB in the end (delta: -44.3MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2024-11-09 19:45:11,219 INFO L158 Benchmark]: Boogie Preprocessor took 201.60ms. Allocated memory is still 176.2MB. Free memory was 113.0MB in the beginning and 108.9MB in the end (delta: 4.1MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2024-11-09 19:45:11,219 INFO L158 Benchmark]: IcfgBuilder took 2471.03ms. Allocated memory was 176.2MB in the beginning and 308.3MB in the end (delta: 132.1MB). Free memory was 108.9MB in the beginning and 240.4MB in the end (delta: -131.5MB). Peak memory consumption was 142.8MB. Max. memory is 16.1GB. [2024-11-09 19:45:11,219 INFO L158 Benchmark]: TraceAbstraction took 38910.94ms. Allocated memory was 308.3MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 239.4MB in the beginning and 581.2MB in the end (delta: -341.8MB). Peak memory consumption was 935.4MB. Max. memory is 16.1GB. [2024-11-09 19:45:11,220 INFO L158 Benchmark]: Witness Printer took 237.71ms. Allocated memory is still 1.6GB. Free memory was 581.2MB in the beginning and 539.2MB in the end (delta: 41.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 19:45:11,220 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory is still 67.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 803.66ms. Allocated memory is still 176.2MB. Free memory was 101.9MB in the beginning and 68.8MB in the end (delta: 33.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 195.56ms. Allocated memory is still 176.2MB. Free memory was 68.8MB in the beginning and 113.0MB in the end (delta: -44.3MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 201.60ms. Allocated memory is still 176.2MB. Free memory was 113.0MB in the beginning and 108.9MB in the end (delta: 4.1MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. * IcfgBuilder took 2471.03ms. Allocated memory was 176.2MB in the beginning and 308.3MB in the end (delta: 132.1MB). Free memory was 108.9MB in the beginning and 240.4MB in the end (delta: -131.5MB). Peak memory consumption was 142.8MB. Max. memory is 16.1GB. * TraceAbstraction took 38910.94ms. Allocated memory was 308.3MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 239.4MB in the beginning and 581.2MB in the end (delta: -341.8MB). Peak memory consumption was 935.4MB. Max. memory is 16.1GB. * Witness Printer took 237.71ms. Allocated memory is still 1.6GB. Free memory was 581.2MB in the beginning and 539.2MB in the end (delta: 41.9MB). Peak memory consumption was 39.8MB. 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: 137]: 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, 427 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.9s, OverallIterations: 16, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 28.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15481 SdHoareTripleChecker+Valid, 26.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15481 mSDsluCounter, 6863 SdHoareTripleChecker+Invalid, 22.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 709 mSDsCounter, 3313 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27127 IncrementalHoareTripleChecker+Invalid, 30440 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3313 mSolverCounterUnsat, 6154 mSDtfsCounter, 27127 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 470 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17203occurred in iteration=12, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 12676 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 8586 NumberOfCodeBlocks, 8586 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 8779 ConstructedInterpolants, 0 QuantifiedInterpolants, 18541 SizeOfPredicates, 5 NumberOfNonLiveVariables, 304 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 11301/11425 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: 1776]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 19:45:11,249 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