./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label43.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_label43.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 443b39ef03d047933d04d3c4124d0553fdbdc2364608b268fc568d4113c9c65f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:43:35,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:43:35,862 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:43:35,866 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:43:35,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:43:35,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:43:35,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:43:35,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:43:35,895 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:43:35,895 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:43:35,896 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:43:35,896 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:43:35,897 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:43:35,897 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:43:35,899 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:43:35,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:43:35,900 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:43:35,901 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:43:35,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:43:35,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:43:35,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:43:35,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:43:35,902 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:43:35,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:43:35,903 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:43:35,903 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:43:35,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:43:35,904 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:43:35,904 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:43:35,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:43:35,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:43:35,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:43:35,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:43:35,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:43:35,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:43:35,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:43:35,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:43:35,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:43:35,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:43:35,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:43:35,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:43:35,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:43:35,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 443b39ef03d047933d04d3c4124d0553fdbdc2364608b268fc568d4113c9c65f [2024-11-09 19:43:36,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:43:36,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:43:36,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:43:36,169 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:43:36,170 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:43:36,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label43.c [2024-11-09 19:43:37,563 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:43:37,937 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:43:37,938 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label43.c [2024-11-09 19:43:37,964 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295a7e3b6/ad5ed89714644f9cbe50177897016624/FLAG05e84a1ad [2024-11-09 19:43:37,979 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295a7e3b6/ad5ed89714644f9cbe50177897016624 [2024-11-09 19:43:37,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:43:37,985 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:43:37,987 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:43:37,987 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:43:37,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:43:37,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:43:37" (1/1) ... [2024-11-09 19:43:37,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b67485f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:37, skipping insertion in model container [2024-11-09 19:43:37,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:43:37" (1/1) ... [2024-11-09 19:43:38,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:43:38,322 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_label43.c[7052,7065] [2024-11-09 19:43:38,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:43:38,696 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:43:38,730 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_label43.c[7052,7065] [2024-11-09 19:43:38,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:43:38,933 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:43:38,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38 WrapperNode [2024-11-09 19:43:38,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:43:38,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:43:38,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:43:38,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:43:38,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38" (1/1) ... [2024-11-09 19:43:38,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38" (1/1) ... [2024-11-09 19:43:39,158 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-09 19:43:39,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:43:39,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:43:39,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:43:39,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:43:39,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38" (1/1) ... [2024-11-09 19:43:39,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38" (1/1) ... [2024-11-09 19:43:39,187 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38" (1/1) ... [2024-11-09 19:43:39,243 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 19:43:39,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38" (1/1) ... [2024-11-09 19:43:39,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38" (1/1) ... [2024-11-09 19:43:39,305 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38" (1/1) ... [2024-11-09 19:43:39,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38" (1/1) ... [2024-11-09 19:43:39,329 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38" (1/1) ... [2024-11-09 19:43:39,341 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38" (1/1) ... [2024-11-09 19:43:39,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:43:39,365 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:43:39,365 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:43:39,365 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:43:39,365 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38" (1/1) ... [2024-11-09 19:43:39,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:43:39,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:43:39,396 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 19:43:39,399 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 19:43:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:43:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:43:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:43:39,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:43:39,567 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:43:39,569 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:43:42,211 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665: havoc calculate_output_#t~ret7#1; [2024-11-09 19:43:42,357 INFO L? ?]: Removed 697 outVars from TransFormulas that were not future-live. [2024-11-09 19:43:42,357 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:43:42,392 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:43:42,396 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:43:42,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:43:42 BoogieIcfgContainer [2024-11-09 19:43:42,397 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:43:42,399 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:43:42,400 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:43:42,404 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:43:42,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:43:37" (1/3) ... [2024-11-09 19:43:42,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b8c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:43:42, skipping insertion in model container [2024-11-09 19:43:42,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:38" (2/3) ... [2024-11-09 19:43:42,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b8c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:43:42, skipping insertion in model container [2024-11-09 19:43:42,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:43:42" (3/3) ... [2024-11-09 19:43:42,408 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label43.c [2024-11-09 19:43:42,426 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:43:42,427 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:43:42,508 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:43:42,517 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;@5bc37e25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:43:42,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:43:42,523 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 19:43:42,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 19:43:42,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:42,535 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:42,536 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:42,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:42,542 INFO L85 PathProgramCache]: Analyzing trace with hash 584980970, now seen corresponding path program 1 times [2024-11-09 19:43:42,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:42,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4278691] [2024-11-09 19:43:42,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:42,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:42,981 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 19:43:42,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:42,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4278691] [2024-11-09 19:43:42,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4278691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:42,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:42,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:43:42,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402004375] [2024-11-09 19:43:42,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:43,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:43,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:43,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:43,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:43,035 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 20.0) internal successors, (60), 2 states have internal predecessors, (60), 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 19:43:45,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:45,825 INFO L93 Difference]: Finished difference Result 1161 states and 2808 transitions. [2024-11-09 19:43:45,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:45,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 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 60 [2024-11-09 19:43:45,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:45,843 INFO L225 Difference]: With dead ends: 1161 [2024-11-09 19:43:45,844 INFO L226 Difference]: Without dead ends: 670 [2024-11-09 19:43:45,848 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 19:43:45,851 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 518 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:45,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 375 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 19:43:45,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-09 19:43:45,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 668. [2024-11-09 19:43:45,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 667 states have (on average 2.1724137931034484) internal successors, (1449), 667 states have internal predecessors, (1449), 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 19:43:45,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1449 transitions. [2024-11-09 19:43:45,931 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1449 transitions. Word has length 60 [2024-11-09 19:43:45,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:45,932 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 1449 transitions. [2024-11-09 19:43:45,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 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 19:43:45,933 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1449 transitions. [2024-11-09 19:43:45,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-09 19:43:45,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:45,939 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 19:43:45,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:43:45,939 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:45,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:45,940 INFO L85 PathProgramCache]: Analyzing trace with hash 2099868707, now seen corresponding path program 1 times [2024-11-09 19:43:45,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:45,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660561823] [2024-11-09 19:43:45,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:45,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:46,156 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:43:46,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:46,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660561823] [2024-11-09 19:43:46,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660561823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:46,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:46,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:43:46,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209885210] [2024-11-09 19:43:46,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:46,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:46,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:46,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:46,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:46,163 INFO L87 Difference]: Start difference. First operand 668 states and 1449 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 19:43:47,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:47,990 INFO L93 Difference]: Finished difference Result 1939 states and 4257 transitions. [2024-11-09 19:43:47,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:47,991 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 136 [2024-11-09 19:43:47,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:47,996 INFO L225 Difference]: With dead ends: 1939 [2024-11-09 19:43:47,996 INFO L226 Difference]: Without dead ends: 1273 [2024-11-09 19:43:47,999 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 19:43:48,000 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 472 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:48,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 370 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:43:48,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2024-11-09 19:43:48,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 1271. [2024-11-09 19:43:48,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1270 states have (on average 2.0338582677165356) internal successors, (2583), 1270 states have internal predecessors, (2583), 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 19:43:48,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 2583 transitions. [2024-11-09 19:43:48,044 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 2583 transitions. Word has length 136 [2024-11-09 19:43:48,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:48,045 INFO L471 AbstractCegarLoop]: Abstraction has 1271 states and 2583 transitions. [2024-11-09 19:43:48,045 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 19:43:48,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 2583 transitions. [2024-11-09 19:43:48,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-09 19:43:48,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:48,062 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:48,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:43:48,063 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:48,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:48,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1141825849, now seen corresponding path program 1 times [2024-11-09 19:43:48,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:48,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843452853] [2024-11-09 19:43:48,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:48,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:48,393 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-09 19:43:48,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:48,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843452853] [2024-11-09 19:43:48,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843452853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:48,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:48,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:43:48,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127017410] [2024-11-09 19:43:48,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:48,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:48,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:48,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:48,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:48,399 INFO L87 Difference]: Start difference. First operand 1271 states and 2583 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 19:43:50,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:50,110 INFO L93 Difference]: Finished difference Result 3450 states and 7116 transitions. [2024-11-09 19:43:50,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:50,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 228 [2024-11-09 19:43:50,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:50,121 INFO L225 Difference]: With dead ends: 3450 [2024-11-09 19:43:50,122 INFO L226 Difference]: Without dead ends: 2181 [2024-11-09 19:43:50,124 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 19:43:50,125 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 490 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:50,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 344 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:43:50,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-09 19:43:50,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2176. [2024-11-09 19:43:50,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 2175 states have (on average 1.9802298850574713) internal successors, (4307), 2175 states have internal predecessors, (4307), 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 19:43:50,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 4307 transitions. [2024-11-09 19:43:50,167 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 4307 transitions. Word has length 228 [2024-11-09 19:43:50,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:50,168 INFO L471 AbstractCegarLoop]: Abstraction has 2176 states and 4307 transitions. [2024-11-09 19:43:50,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 19:43:50,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 4307 transitions. [2024-11-09 19:43:50,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-09 19:43:50,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:50,172 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:43:50,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:43:50,173 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:50,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:50,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1379391173, now seen corresponding path program 1 times [2024-11-09 19:43:50,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:50,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459380698] [2024-11-09 19:43:50,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:50,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:51,088 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-09 19:43:51,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:51,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459380698] [2024-11-09 19:43:51,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459380698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:51,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:51,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:43:51,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947439519] [2024-11-09 19:43:51,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:51,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:51,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:51,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:51,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:51,092 INFO L87 Difference]: Start difference. First operand 2176 states and 4307 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 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 19:43:52,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:52,626 INFO L93 Difference]: Finished difference Result 4650 states and 9156 transitions. [2024-11-09 19:43:52,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:52,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 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 334 [2024-11-09 19:43:52,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:52,637 INFO L225 Difference]: With dead ends: 4650 [2024-11-09 19:43:52,638 INFO L226 Difference]: Without dead ends: 2476 [2024-11-09 19:43:52,643 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 19:43:52,644 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 337 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:52,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 363 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:43:52,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2024-11-09 19:43:52,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2476. [2024-11-09 19:43:52,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2475 states have (on average 1.9575757575757575) internal successors, (4845), 2475 states have internal predecessors, (4845), 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 19:43:52,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 4845 transitions. [2024-11-09 19:43:52,724 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 4845 transitions. Word has length 334 [2024-11-09 19:43:52,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:52,725 INFO L471 AbstractCegarLoop]: Abstraction has 2476 states and 4845 transitions. [2024-11-09 19:43:52,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 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 19:43:52,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 4845 transitions. [2024-11-09 19:43:52,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-09 19:43:52,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:52,729 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:43:52,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:43:52,730 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:52,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:52,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1482389714, now seen corresponding path program 1 times [2024-11-09 19:43:52,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:52,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995102092] [2024-11-09 19:43:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:52,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:53,038 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-09 19:43:53,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:53,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995102092] [2024-11-09 19:43:53,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995102092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:53,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:53,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:53,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789589779] [2024-11-09 19:43:53,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:53,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:53,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:53,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:53,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:53,043 INFO L87 Difference]: Start difference. First operand 2476 states and 4845 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 19:43:55,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:55,000 INFO L93 Difference]: Finished difference Result 5862 states and 11693 transitions. [2024-11-09 19:43:55,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:55,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 349 [2024-11-09 19:43:55,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:55,016 INFO L225 Difference]: With dead ends: 5862 [2024-11-09 19:43:55,017 INFO L226 Difference]: Without dead ends: 3688 [2024-11-09 19:43:55,020 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 19:43:55,022 INFO L432 NwaCegarLoop]: 867 mSDtfsCounter, 490 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:55,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 908 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 19:43:55,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3688 states. [2024-11-09 19:43:55,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3688 to 3687. [2024-11-09 19:43:55,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 3686 states have (on average 1.9234943027672273) internal successors, (7090), 3686 states have internal predecessors, (7090), 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 19:43:55,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 7090 transitions. [2024-11-09 19:43:55,095 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 7090 transitions. Word has length 349 [2024-11-09 19:43:55,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:55,095 INFO L471 AbstractCegarLoop]: Abstraction has 3687 states and 7090 transitions. [2024-11-09 19:43:55,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 19:43:55,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 7090 transitions. [2024-11-09 19:43:55,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-09 19:43:55,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:55,102 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 19:43:55,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:43:55,103 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:55,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:55,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1988099660, now seen corresponding path program 1 times [2024-11-09 19:43:55,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:55,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328109493] [2024-11-09 19:43:55,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:55,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:55,451 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 19:43:55,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:55,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328109493] [2024-11-09 19:43:55,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328109493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:55,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:55,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:55,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51691983] [2024-11-09 19:43:55,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:55,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:55,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:55,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:55,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:55,456 INFO L87 Difference]: Start difference. First operand 3687 states and 7090 transitions. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 19:43:57,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:57,118 INFO L93 Difference]: Finished difference Result 8279 states and 16173 transitions. [2024-11-09 19:43:57,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:57,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 408 [2024-11-09 19:43:57,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:57,140 INFO L225 Difference]: With dead ends: 8279 [2024-11-09 19:43:57,141 INFO L226 Difference]: Without dead ends: 4894 [2024-11-09 19:43:57,145 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 19:43:57,147 INFO L432 NwaCegarLoop]: 832 mSDtfsCounter, 501 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:57,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 871 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:43:57,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2024-11-09 19:43:57,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 4594. [2024-11-09 19:43:57,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4594 states, 4593 states have (on average 1.908338776398868) internal successors, (8765), 4593 states have internal predecessors, (8765), 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 19:43:57,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4594 states to 4594 states and 8765 transitions. [2024-11-09 19:43:57,255 INFO L78 Accepts]: Start accepts. Automaton has 4594 states and 8765 transitions. Word has length 408 [2024-11-09 19:43:57,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:57,256 INFO L471 AbstractCegarLoop]: Abstraction has 4594 states and 8765 transitions. [2024-11-09 19:43:57,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 19:43:57,257 INFO L276 IsEmpty]: Start isEmpty. Operand 4594 states and 8765 transitions. [2024-11-09 19:43:57,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-09 19:43:57,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:57,265 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2024-11-09 19:43:57,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:43:57,265 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:57,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:57,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1979259434, now seen corresponding path program 1 times [2024-11-09 19:43:57,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:57,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894693436] [2024-11-09 19:43:57,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:57,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:57,589 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:43:57,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:57,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894693436] [2024-11-09 19:43:57,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894693436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:57,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:57,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:57,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987522815] [2024-11-09 19:43:57,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:57,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:57,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:57,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:57,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:57,592 INFO L87 Difference]: Start difference. First operand 4594 states and 8765 transitions. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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 19:43:59,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:59,151 INFO L93 Difference]: Finished difference Result 10094 states and 19531 transitions. [2024-11-09 19:43:59,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:59,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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 413 [2024-11-09 19:43:59,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:59,176 INFO L225 Difference]: With dead ends: 10094 [2024-11-09 19:43:59,176 INFO L226 Difference]: Without dead ends: 5802 [2024-11-09 19:43:59,182 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 19:43:59,183 INFO L432 NwaCegarLoop]: 820 mSDtfsCounter, 481 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:59,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 858 Invalid, 1600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:43:59,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5802 states. [2024-11-09 19:43:59,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5802 to 5795. [2024-11-09 19:43:59,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5795 states, 5794 states have (on average 1.8976527442181568) internal successors, (10995), 5794 states have internal predecessors, (10995), 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 19:43:59,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5795 states to 5795 states and 10995 transitions. [2024-11-09 19:43:59,275 INFO L78 Accepts]: Start accepts. Automaton has 5795 states and 10995 transitions. Word has length 413 [2024-11-09 19:43:59,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:59,276 INFO L471 AbstractCegarLoop]: Abstraction has 5795 states and 10995 transitions. [2024-11-09 19:43:59,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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 19:43:59,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5795 states and 10995 transitions. [2024-11-09 19:43:59,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-11-09 19:43:59,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:59,290 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:43:59,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:43:59,291 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:59,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:59,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1887555295, now seen corresponding path program 1 times [2024-11-09 19:43:59,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:59,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543528113] [2024-11-09 19:43:59,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:59,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:59,604 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-09 19:43:59,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:59,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543528113] [2024-11-09 19:43:59,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543528113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:59,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:59,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:59,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868660022] [2024-11-09 19:43:59,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:59,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:59,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:59,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:59,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:59,607 INFO L87 Difference]: Start difference. First operand 5795 states and 10995 transitions. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 19:44:01,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:01,210 INFO L93 Difference]: Finished difference Result 13688 states and 26208 transitions. [2024-11-09 19:44:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:01,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 423 [2024-11-09 19:44:01,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:01,228 INFO L225 Difference]: With dead ends: 13688 [2024-11-09 19:44:01,229 INFO L226 Difference]: Without dead ends: 8195 [2024-11-09 19:44:01,234 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 19:44:01,235 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 488 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:01,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 319 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:44:01,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8195 states. [2024-11-09 19:44:01,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8195 to 5189. [2024-11-09 19:44:01,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 1.9069005397070162) internal successors, (9893), 5188 states have internal predecessors, (9893), 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 19:44:01,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 9893 transitions. [2024-11-09 19:44:01,330 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 9893 transitions. Word has length 423 [2024-11-09 19:44:01,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:01,331 INFO L471 AbstractCegarLoop]: Abstraction has 5189 states and 9893 transitions. [2024-11-09 19:44:01,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 19:44:01,332 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 9893 transitions. [2024-11-09 19:44:01,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2024-11-09 19:44:01,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:01,337 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-09 19:44:01,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:44:01,338 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:01,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:01,338 INFO L85 PathProgramCache]: Analyzing trace with hash -269599703, now seen corresponding path program 1 times [2024-11-09 19:44:01,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:01,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707704666] [2024-11-09 19:44:01,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:01,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:01,657 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2024-11-09 19:44:01,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:01,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707704666] [2024-11-09 19:44:01,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707704666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:01,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:01,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:01,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485298652] [2024-11-09 19:44:01,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:01,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:01,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:01,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:01,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:01,660 INFO L87 Difference]: Start difference. First operand 5189 states and 9893 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 19:44:03,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:03,130 INFO L93 Difference]: Finished difference Result 11575 states and 22363 transitions. [2024-11-09 19:44:03,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:03,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 527 [2024-11-09 19:44:03,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:03,148 INFO L225 Difference]: With dead ends: 11575 [2024-11-09 19:44:03,148 INFO L226 Difference]: Without dead ends: 6688 [2024-11-09 19:44:03,154 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 19:44:03,154 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 589 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:03,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 684 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:44:03,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6688 states. [2024-11-09 19:44:03,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6688 to 6688. [2024-11-09 19:44:03,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6688 states, 6687 states have (on average 1.9289666517122777) internal successors, (12899), 6687 states have internal predecessors, (12899), 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 19:44:03,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6688 states to 6688 states and 12899 transitions. [2024-11-09 19:44:03,281 INFO L78 Accepts]: Start accepts. Automaton has 6688 states and 12899 transitions. Word has length 527 [2024-11-09 19:44:03,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:03,282 INFO L471 AbstractCegarLoop]: Abstraction has 6688 states and 12899 transitions. [2024-11-09 19:44:03,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 19:44:03,283 INFO L276 IsEmpty]: Start isEmpty. Operand 6688 states and 12899 transitions. [2024-11-09 19:44:03,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2024-11-09 19:44:03,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:03,288 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:44:03,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:44:03,288 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:03,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:03,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1207893680, now seen corresponding path program 1 times [2024-11-09 19:44:03,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:03,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879297268] [2024-11-09 19:44:03,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:03,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:03,864 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2024-11-09 19:44:03,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:03,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879297268] [2024-11-09 19:44:03,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879297268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:03,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:03,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:03,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226096776] [2024-11-09 19:44:03,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:03,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:03,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:03,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:03,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:03,868 INFO L87 Difference]: Start difference. First operand 6688 states and 12899 transitions. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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 19:44:05,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:05,464 INFO L93 Difference]: Finished difference Result 18188 states and 35225 transitions. [2024-11-09 19:44:05,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:05,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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 552 [2024-11-09 19:44:05,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:05,489 INFO L225 Difference]: With dead ends: 18188 [2024-11-09 19:44:05,489 INFO L226 Difference]: Without dead ends: 11802 [2024-11-09 19:44:05,497 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 19:44:05,498 INFO L432 NwaCegarLoop]: 823 mSDtfsCounter, 478 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:05,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 858 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:44:05,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11802 states. [2024-11-09 19:44:05,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11802 to 11191. [2024-11-09 19:44:05,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11191 states, 11190 states have (on average 1.9041108132260947) internal successors, (21307), 11190 states have internal predecessors, (21307), 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 19:44:05,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11191 states to 11191 states and 21307 transitions. [2024-11-09 19:44:05,720 INFO L78 Accepts]: Start accepts. Automaton has 11191 states and 21307 transitions. Word has length 552 [2024-11-09 19:44:05,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:05,721 INFO L471 AbstractCegarLoop]: Abstraction has 11191 states and 21307 transitions. [2024-11-09 19:44:05,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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 19:44:05,721 INFO L276 IsEmpty]: Start isEmpty. Operand 11191 states and 21307 transitions. [2024-11-09 19:44:05,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2024-11-09 19:44:05,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:05,732 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:44:05,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:44:05,734 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:05,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:05,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1526784609, now seen corresponding path program 1 times [2024-11-09 19:44:05,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:05,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394437283] [2024-11-09 19:44:05,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:05,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:06,506 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 615 proven. 39 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 19:44:06,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:06,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394437283] [2024-11-09 19:44:06,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394437283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:44:06,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339797790] [2024-11-09 19:44:06,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:06,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:44:06,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:44:06,509 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 19:44:06,511 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 19:44:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:06,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 19:44:06,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:44:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 615 proven. 39 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 19:44:07,649 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:44:08,511 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 615 proven. 39 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 19:44:08,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339797790] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 19:44:08,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 19:44:08,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-09 19:44:08,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477498065] [2024-11-09 19:44:08,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 19:44:08,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 19:44:08,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:08,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 19:44:08,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:44:08,515 INFO L87 Difference]: Start difference. First operand 11191 states and 21307 transitions. Second operand has 9 states, 9 states have (on average 81.66666666666667) internal successors, (735), 8 states have internal predecessors, (735), 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 19:44:15,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:15,265 INFO L93 Difference]: Finished difference Result 29546 states and 55905 transitions. [2024-11-09 19:44:15,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 19:44:15,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 81.66666666666667) internal successors, (735), 8 states have internal predecessors, (735), 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 619 [2024-11-09 19:44:15,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:15,296 INFO L225 Difference]: With dead ends: 29546 [2024-11-09 19:44:15,296 INFO L226 Difference]: Without dead ends: 13592 [2024-11-09 19:44:15,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1247 GetRequests, 1233 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-11-09 19:44:15,308 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 6794 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 7764 mSolverCounterSat, 736 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6794 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 8500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 736 IncrementalHoareTripleChecker+Valid, 7764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:15,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6794 Valid, 223 Invalid, 8500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [736 Valid, 7764 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-09 19:44:15,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13592 states. [2024-11-09 19:44:15,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13592 to 10589. [2024-11-09 19:44:15,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10589 states, 10588 states have (on average 1.837551945598791) internal successors, (19456), 10588 states have internal predecessors, (19456), 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 19:44:15,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10589 states to 10589 states and 19456 transitions. [2024-11-09 19:44:15,459 INFO L78 Accepts]: Start accepts. Automaton has 10589 states and 19456 transitions. Word has length 619 [2024-11-09 19:44:15,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:15,459 INFO L471 AbstractCegarLoop]: Abstraction has 10589 states and 19456 transitions. [2024-11-09 19:44:15,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.66666666666667) internal successors, (735), 8 states have internal predecessors, (735), 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 19:44:15,460 INFO L276 IsEmpty]: Start isEmpty. Operand 10589 states and 19456 transitions. [2024-11-09 19:44:15,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-09 19:44:15,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:15,468 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 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, 1] [2024-11-09 19:44:15,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 19:44:15,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 19:44:15,670 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:15,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:15,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1002922381, now seen corresponding path program 1 times [2024-11-09 19:44:15,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:15,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307397782] [2024-11-09 19:44:15,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:15,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:16,041 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2024-11-09 19:44:16,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:16,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307397782] [2024-11-09 19:44:16,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307397782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:16,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:16,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:16,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023896265] [2024-11-09 19:44:16,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:16,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:16,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:16,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:16,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:16,044 INFO L87 Difference]: Start difference. First operand 10589 states and 19456 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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 19:44:17,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:17,312 INFO L93 Difference]: Finished difference Result 21174 states and 38920 transitions. [2024-11-09 19:44:17,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:17,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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 644 [2024-11-09 19:44:17,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:17,331 INFO L225 Difference]: With dead ends: 21174 [2024-11-09 19:44:17,331 INFO L226 Difference]: Without dead ends: 10887 [2024-11-09 19:44:17,339 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 19:44:17,340 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 671 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:17,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 72 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:44:17,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10887 states. [2024-11-09 19:44:17,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10887 to 10587. [2024-11-09 19:44:17,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10587 states, 10586 states have (on average 1.8375212544870583) internal successors, (19452), 10586 states have internal predecessors, (19452), 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 19:44:17,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10587 states to 10587 states and 19452 transitions. [2024-11-09 19:44:17,478 INFO L78 Accepts]: Start accepts. Automaton has 10587 states and 19452 transitions. Word has length 644 [2024-11-09 19:44:17,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:17,479 INFO L471 AbstractCegarLoop]: Abstraction has 10587 states and 19452 transitions. [2024-11-09 19:44:17,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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 19:44:17,479 INFO L276 IsEmpty]: Start isEmpty. Operand 10587 states and 19452 transitions. [2024-11-09 19:44:17,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2024-11-09 19:44:17,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:17,488 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:44:17,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:44:17,488 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:17,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:17,490 INFO L85 PathProgramCache]: Analyzing trace with hash -596537359, now seen corresponding path program 1 times [2024-11-09 19:44:17,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:17,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584269864] [2024-11-09 19:44:17,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:17,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:18,790 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 114 proven. 387 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-09 19:44:18,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:18,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584269864] [2024-11-09 19:44:18,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584269864] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:44:18,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808326536] [2024-11-09 19:44:18,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:18,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:44:18,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:44:18,794 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:44:18,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:44:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:19,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:44:19,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:44:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-09 19:44:19,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:44:19,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808326536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:19,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:44:19,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-09 19:44:19,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068087958] [2024-11-09 19:44:19,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:19,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:19,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:19,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:19,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:44:19,158 INFO L87 Difference]: Start difference. First operand 10587 states and 19452 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 19:44:20,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:20,383 INFO L93 Difference]: Finished difference Result 24171 states and 44523 transitions. [2024-11-09 19:44:20,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:20,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 664 [2024-11-09 19:44:20,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:20,400 INFO L225 Difference]: With dead ends: 24171 [2024-11-09 19:44:20,401 INFO L226 Difference]: Without dead ends: 13586 [2024-11-09 19:44:20,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 664 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:44:20,412 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 489 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:20,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 782 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:44:20,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13586 states. [2024-11-09 19:44:20,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13586 to 12986. [2024-11-09 19:44:20,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12986 states, 12985 states have (on average 1.828032345013477) internal successors, (23737), 12985 states have internal predecessors, (23737), 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 19:44:20,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12986 states to 12986 states and 23737 transitions. [2024-11-09 19:44:20,576 INFO L78 Accepts]: Start accepts. Automaton has 12986 states and 23737 transitions. Word has length 664 [2024-11-09 19:44:20,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:20,577 INFO L471 AbstractCegarLoop]: Abstraction has 12986 states and 23737 transitions. [2024-11-09 19:44:20,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 19:44:20,577 INFO L276 IsEmpty]: Start isEmpty. Operand 12986 states and 23737 transitions. [2024-11-09 19:44:20,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-09 19:44:20,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:20,587 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:44:20,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:44:20,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 19:44:20,788 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:20,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:20,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1063771235, now seen corresponding path program 1 times [2024-11-09 19:44:20,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:20,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175477939] [2024-11-09 19:44:20,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:20,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:21,906 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 114 proven. 409 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-09 19:44:21,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:21,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175477939] [2024-11-09 19:44:21,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175477939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:44:21,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346428515] [2024-11-09 19:44:21,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:21,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:44:21,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:44:21,909 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:44:21,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 19:44:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:22,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:44:22,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:44:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2024-11-09 19:44:22,225 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:44:22,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346428515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:22,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:44:22,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-09 19:44:22,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189668771] [2024-11-09 19:44:22,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:22,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:22,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:22,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:22,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:44:22,228 INFO L87 Difference]: Start difference. First operand 12986 states and 23737 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 19:44:23,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:23,426 INFO L93 Difference]: Finished difference Result 25967 states and 47466 transitions. [2024-11-09 19:44:23,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:23,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 688 [2024-11-09 19:44:23,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:23,446 INFO L225 Difference]: With dead ends: 25967 [2024-11-09 19:44:23,446 INFO L226 Difference]: Without dead ends: 12983 [2024-11-09 19:44:23,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 688 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:44:23,457 INFO L432 NwaCegarLoop]: 706 mSDtfsCounter, 501 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:23,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 742 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1221 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:44:23,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12983 states. [2024-11-09 19:44:23,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12983 to 12383. [2024-11-09 19:44:23,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12383 states, 12382 states have (on average 1.80164755289937) internal successors, (22308), 12382 states have internal predecessors, (22308), 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 19:44:23,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12383 states to 12383 states and 22308 transitions. [2024-11-09 19:44:23,622 INFO L78 Accepts]: Start accepts. Automaton has 12383 states and 22308 transitions. Word has length 688 [2024-11-09 19:44:23,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:23,623 INFO L471 AbstractCegarLoop]: Abstraction has 12383 states and 22308 transitions. [2024-11-09 19:44:23,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 19:44:23,623 INFO L276 IsEmpty]: Start isEmpty. Operand 12383 states and 22308 transitions. [2024-11-09 19:44:23,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-09 19:44:23,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:23,679 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:44:23,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 19:44:23,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:44:23,880 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:23,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:23,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1331543457, now seen corresponding path program 1 times [2024-11-09 19:44:23,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:23,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272237961] [2024-11-09 19:44:23,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:23,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2024-11-09 19:44:24,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:24,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272237961] [2024-11-09 19:44:24,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272237961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:24,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:24,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:24,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674746026] [2024-11-09 19:44:24,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:24,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:24,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:24,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:24,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:24,484 INFO L87 Difference]: Start difference. First operand 12383 states and 22308 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 19:44:25,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:25,742 INFO L93 Difference]: Finished difference Result 28985 states and 52266 transitions. [2024-11-09 19:44:25,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:25,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 688 [2024-11-09 19:44:25,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:25,767 INFO L225 Difference]: With dead ends: 28985 [2024-11-09 19:44:25,767 INFO L226 Difference]: Without dead ends: 16604 [2024-11-09 19:44:25,778 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 19:44:25,779 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 527 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:25,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 697 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:44:25,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16604 states. [2024-11-09 19:44:26,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16604 to 14188. [2024-11-09 19:44:26,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14188 states, 14187 states have (on average 1.8030591386480581) internal successors, (25580), 14187 states have internal predecessors, (25580), 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 19:44:26,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14188 states to 14188 states and 25580 transitions. [2024-11-09 19:44:26,068 INFO L78 Accepts]: Start accepts. Automaton has 14188 states and 25580 transitions. Word has length 688 [2024-11-09 19:44:26,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:26,069 INFO L471 AbstractCegarLoop]: Abstraction has 14188 states and 25580 transitions. [2024-11-09 19:44:26,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 19:44:26,070 INFO L276 IsEmpty]: Start isEmpty. Operand 14188 states and 25580 transitions. [2024-11-09 19:44:26,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2024-11-09 19:44:26,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:26,086 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:44:26,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 19:44:26,086 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:26,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:26,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1656317053, now seen corresponding path program 1 times [2024-11-09 19:44:26,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:26,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371671987] [2024-11-09 19:44:26,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:26,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:26,513 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2024-11-09 19:44:26,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:26,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371671987] [2024-11-09 19:44:26,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371671987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:26,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:26,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:26,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3836991] [2024-11-09 19:44:26,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:26,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:26,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:26,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:26,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:26,516 INFO L87 Difference]: Start difference. First operand 14188 states and 25580 transitions. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 19:44:27,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:27,734 INFO L93 Difference]: Finished difference Result 31371 states and 56672 transitions. [2024-11-09 19:44:27,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:27,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 729 [2024-11-09 19:44:27,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:27,753 INFO L225 Difference]: With dead ends: 31371 [2024-11-09 19:44:27,753 INFO L226 Difference]: Without dead ends: 17185 [2024-11-09 19:44:27,759 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 19:44:27,759 INFO L432 NwaCegarLoop]: 671 mSDtfsCounter, 514 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:27,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 700 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:44:27,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17185 states. [2024-11-09 19:44:27,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17185 to 17184. [2024-11-09 19:44:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17184 states, 17183 states have (on average 1.8037013327125648) internal successors, (30993), 17183 states have internal predecessors, (30993), 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 19:44:27,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17184 states to 17184 states and 30993 transitions. [2024-11-09 19:44:27,977 INFO L78 Accepts]: Start accepts. Automaton has 17184 states and 30993 transitions. Word has length 729 [2024-11-09 19:44:27,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:27,979 INFO L471 AbstractCegarLoop]: Abstraction has 17184 states and 30993 transitions. [2024-11-09 19:44:27,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 19:44:27,979 INFO L276 IsEmpty]: Start isEmpty. Operand 17184 states and 30993 transitions. [2024-11-09 19:44:27,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 908 [2024-11-09 19:44:27,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:27,995 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:44:27,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:44:27,995 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:27,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:27,996 INFO L85 PathProgramCache]: Analyzing trace with hash -533958758, now seen corresponding path program 1 times [2024-11-09 19:44:27,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:27,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830078972] [2024-11-09 19:44:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:27,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:28,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1439 backedges. 857 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2024-11-09 19:44:28,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:28,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830078972] [2024-11-09 19:44:28,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830078972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:28,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:28,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:28,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025781831] [2024-11-09 19:44:28,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:28,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:28,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:28,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:28,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:28,317 INFO L87 Difference]: Start difference. First operand 17184 states and 30993 transitions. Second operand has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 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 19:44:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:29,554 INFO L93 Difference]: Finished difference Result 37364 states and 67422 transitions. [2024-11-09 19:44:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:29,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 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 907 [2024-11-09 19:44:29,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:29,576 INFO L225 Difference]: With dead ends: 37364 [2024-11-09 19:44:29,576 INFO L226 Difference]: Without dead ends: 20482 [2024-11-09 19:44:29,586 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 19:44:29,586 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 318 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:29,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 132 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:44:29,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20482 states. [2024-11-09 19:44:29,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20482 to 17782. [2024-11-09 19:44:29,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17782 states, 17781 states have (on average 1.8004611664135874) internal successors, (32014), 17781 states have internal predecessors, (32014), 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 19:44:29,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17782 states to 17782 states and 32014 transitions. [2024-11-09 19:44:29,774 INFO L78 Accepts]: Start accepts. Automaton has 17782 states and 32014 transitions. Word has length 907 [2024-11-09 19:44:29,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:29,774 INFO L471 AbstractCegarLoop]: Abstraction has 17782 states and 32014 transitions. [2024-11-09 19:44:29,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 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 19:44:29,775 INFO L276 IsEmpty]: Start isEmpty. Operand 17782 states and 32014 transitions. [2024-11-09 19:44:29,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 997 [2024-11-09 19:44:29,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:29,791 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:44:29,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 19:44:29,791 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:29,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:29,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1775705814, now seen corresponding path program 1 times [2024-11-09 19:44:29,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:29,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521895905] [2024-11-09 19:44:29,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:29,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:30,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 1255 trivial. 0 not checked. [2024-11-09 19:44:30,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:30,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521895905] [2024-11-09 19:44:30,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521895905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:30,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:30,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:30,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626512388] [2024-11-09 19:44:30,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:30,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:30,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:30,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:30,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:30,562 INFO L87 Difference]: Start difference. First operand 17782 states and 32014 transitions. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 19:44:31,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:31,905 INFO L93 Difference]: Finished difference Result 38576 states and 69433 transitions. [2024-11-09 19:44:31,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:31,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 996 [2024-11-09 19:44:31,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:31,907 INFO L225 Difference]: With dead ends: 38576 [2024-11-09 19:44:31,907 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 19:44:31,919 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 19:44:31,920 INFO L432 NwaCegarLoop]: 634 mSDtfsCounter, 523 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:31,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 658 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:44:31,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 19:44:31,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 19:44:31,921 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 19:44:31,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 19:44:31,921 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 996 [2024-11-09 19:44:31,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:31,921 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 19:44:31,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 19:44:31,922 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 19:44:31,922 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 19:44:31,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 19:44:31,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 19:44:31,926 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:44:31,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 19:44:34,501 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 19:44:34,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:44:34 BoogieIcfgContainer [2024-11-09 19:44:34,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 19:44:34,513 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 19:44:34,513 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 19:44:34,514 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 19:44:34,514 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:43:42" (3/4) ... [2024-11-09 19:44:34,516 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 19:44:34,551 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 19:44:34,554 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 19:44:34,558 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 19:44:34,561 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 19:44:34,812 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 19:44:34,813 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 19:44:34,813 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 19:44:34,813 INFO L158 Benchmark]: Toolchain (without parser) took 56827.97ms. Allocated memory was 176.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 140.2MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 289.4MB. Max. memory is 16.1GB. [2024-11-09 19:44:34,813 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 19:44:34,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 947.19ms. Allocated memory is still 176.2MB. Free memory was 140.2MB in the beginning and 59.7MB in the end (delta: 80.5MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2024-11-09 19:44:34,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 224.16ms. Allocated memory is still 176.2MB. Free memory was 59.7MB in the beginning and 108.1MB in the end (delta: -48.5MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-11-09 19:44:34,814 INFO L158 Benchmark]: Boogie Preprocessor took 204.38ms. Allocated memory is still 176.2MB. Free memory was 108.1MB in the beginning and 51.5MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-09 19:44:34,814 INFO L158 Benchmark]: IcfgBuilder took 3032.46ms. Allocated memory was 176.2MB in the beginning and 295.7MB in the end (delta: 119.5MB). Free memory was 51.5MB in the beginning and 154.3MB in the end (delta: -102.8MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. [2024-11-09 19:44:34,814 INFO L158 Benchmark]: TraceAbstraction took 52114.05ms. Allocated memory was 295.7MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 153.3MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 894.0MB. Max. memory is 16.1GB. [2024-11-09 19:44:34,815 INFO L158 Benchmark]: Witness Printer took 299.25ms. Allocated memory is still 1.5GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 41.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 19:44:34,816 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 947.19ms. Allocated memory is still 176.2MB. Free memory was 140.2MB in the beginning and 59.7MB in the end (delta: 80.5MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 224.16ms. Allocated memory is still 176.2MB. Free memory was 59.7MB in the beginning and 108.1MB in the end (delta: -48.5MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 204.38ms. Allocated memory is still 176.2MB. Free memory was 108.1MB in the beginning and 51.5MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * IcfgBuilder took 3032.46ms. Allocated memory was 176.2MB in the beginning and 295.7MB in the end (delta: 119.5MB). Free memory was 51.5MB in the beginning and 154.3MB in the end (delta: -102.8MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. * TraceAbstraction took 52114.05ms. Allocated memory was 295.7MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 153.3MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 894.0MB. Max. memory is 16.1GB. * Witness Printer took 299.25ms. Allocated memory is still 1.5GB. Free memory was 1.2GB in the beginning and 1.2GB 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: 191]: 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: 49.5s, OverallIterations: 18, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 33.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15181 SdHoareTripleChecker+Valid, 31.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15181 mSDsluCounter, 9956 SdHoareTripleChecker+Invalid, 26.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 723 mSDsCounter, 3510 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30235 IncrementalHoareTripleChecker+Invalid, 33745 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3510 mSolverCounterUnsat, 9233 mSDtfsCounter, 30235 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2650 GetRequests, 2611 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17782occurred in iteration=17, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 13554 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 11336 NumberOfCodeBlocks, 11336 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 11933 ConstructedInterpolants, 0 QuantifiedInterpolants, 36743 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2341 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 22 InterpolantComputations, 17 PerfectInterpolantSequences, 11687/12600 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 19:44:34,849 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