./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem13_label11.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 63f4b5f458089380e8f0669a95e988a7b7ab051335671065e81323bd858af55a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:58:30,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:58:30,400 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:58:30,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:58:30,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:58:30,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:58:30,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:58:30,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:58:30,420 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:58:30,420 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:58:30,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:58:30,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:58:30,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:58:30,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:58:30,422 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:58:30,422 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:58:30,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:58:30,422 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:58:30,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:58:30,423 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:58:30,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:58:30,424 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:58:30,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:58:30,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:58:30,424 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:58:30,425 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:58:30,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:58:30,425 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:58:30,425 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:58:30,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:58:30,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:58:30,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:58:30,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:58:30,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:58:30,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:58:30,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:58:30,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:58:30,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:58:30,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:58:30,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:58:30,428 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:58:30,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:58:30,429 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63f4b5f458089380e8f0669a95e988a7b7ab051335671065e81323bd858af55a [2024-11-16 03:58:30,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:58:30,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:58:30,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:58:30,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:58:30,677 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:58:30,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label11.c [2024-11-16 03:58:31,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:58:32,288 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:58:32,289 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label11.c [2024-11-16 03:58:32,311 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a76a1002a/5ee2ae58758e4de2bc44e7865cdadb34/FLAGc2f85fc89 [2024-11-16 03:58:32,489 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a76a1002a/5ee2ae58758e4de2bc44e7865cdadb34 [2024-11-16 03:58:32,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:58:32,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:58:32,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:58:32,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:58:32,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:58:32,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:58:32" (1/1) ... [2024-11-16 03:58:32,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45adefcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:32, skipping insertion in model container [2024-11-16 03:58:32,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:58:32" (1/1) ... [2024-11-16 03:58:32,590 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:58:32,815 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/Problem13_label11.c[3906,3919] [2024-11-16 03:58:33,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:58:33,510 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:58:33,529 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/Problem13_label11.c[3906,3919] [2024-11-16 03:58:33,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:58:33,885 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:58:33,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33 WrapperNode [2024-11-16 03:58:33,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:58:33,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:58:33,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:58:33,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:58:33,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33" (1/1) ... [2024-11-16 03:58:33,942 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33" (1/1) ... [2024-11-16 03:58:34,278 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-16 03:58:34,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:58:34,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:58:34,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:58:34,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:58:34,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33" (1/1) ... [2024-11-16 03:58:34,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33" (1/1) ... [2024-11-16 03:58:34,339 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33" (1/1) ... [2024-11-16 03:58:34,587 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 03:58:34,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33" (1/1) ... [2024-11-16 03:58:34,587 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33" (1/1) ... [2024-11-16 03:58:34,731 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33" (1/1) ... [2024-11-16 03:58:34,821 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33" (1/1) ... [2024-11-16 03:58:34,894 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33" (1/1) ... [2024-11-16 03:58:34,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33" (1/1) ... [2024-11-16 03:58:35,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:58:35,011 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:58:35,011 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:58:35,012 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:58:35,012 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33" (1/1) ... [2024-11-16 03:58:35,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:58:35,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:58:35,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 03:58:35,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 03:58:35,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:58:35,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:58:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:58:35,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:58:35,141 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:58:35,143 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:58:38,855 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894: havoc calculate_output_#t~ret9#1; [2024-11-16 03:58:38,855 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3629: havoc calculate_output2_#t~ret10#1; [2024-11-16 03:58:38,855 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5351: havoc calculate_output3_#t~ret11#1; [2024-11-16 03:58:39,024 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-16 03:58:39,025 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:58:39,054 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:58:39,055 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:58:39,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:58:39 BoogieIcfgContainer [2024-11-16 03:58:39,055 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:58:39,057 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:58:39,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:58:39,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:58:39,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:58:32" (1/3) ... [2024-11-16 03:58:39,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691f0446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:58:39, skipping insertion in model container [2024-11-16 03:58:39,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:33" (2/3) ... [2024-11-16 03:58:39,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691f0446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:58:39, skipping insertion in model container [2024-11-16 03:58:39,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:58:39" (3/3) ... [2024-11-16 03:58:39,063 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label11.c [2024-11-16 03:58:39,078 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:58:39,078 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:58:39,151 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:58:39,161 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;@45518d9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:58:39,163 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:58:39,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 1101 states, 1099 states have (on average 1.8252957233848954) internal successors, (2006), 1100 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:39,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 03:58:39,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:39,181 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] [2024-11-16 03:58:39,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:39,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:39,185 INFO L85 PathProgramCache]: Analyzing trace with hash -18105510, now seen corresponding path program 1 times [2024-11-16 03:58:39,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:39,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229229177] [2024-11-16 03:58:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:39,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:39,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:39,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:39,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229229177] [2024-11-16 03:58:39,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229229177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:39,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:39,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:58:39,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081893089] [2024-11-16 03:58:39,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:39,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:39,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:39,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:39,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:39,467 INFO L87 Difference]: Start difference. First operand has 1101 states, 1099 states have (on average 1.8252957233848954) internal successors, (2006), 1100 states have internal predecessors, (2006), 0 states have call successors, (0), 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 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:43,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:43,275 INFO L93 Difference]: Finished difference Result 3041 states and 5649 transitions. [2024-11-16 03:58:43,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:43,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2024-11-16 03:58:43,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:43,307 INFO L225 Difference]: With dead ends: 3041 [2024-11-16 03:58:43,307 INFO L226 Difference]: Without dead ends: 1876 [2024-11-16 03:58:43,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:43,321 INFO L432 NwaCegarLoop]: 993 mSDtfsCounter, 879 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 3363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 858 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:43,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 1149 Invalid, 3363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [858 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-16 03:58:43,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2024-11-16 03:58:43,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1862. [2024-11-16 03:58:43,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1861 states have (on average 1.5432563138097797) internal successors, (2872), 1861 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:43,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2872 transitions. [2024-11-16 03:58:43,432 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2872 transitions. Word has length 28 [2024-11-16 03:58:43,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:43,432 INFO L471 AbstractCegarLoop]: Abstraction has 1862 states and 2872 transitions. [2024-11-16 03:58:43,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:43,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2872 transitions. [2024-11-16 03:58:43,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 03:58:43,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:43,436 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:43,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:58:43,438 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:43,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:43,438 INFO L85 PathProgramCache]: Analyzing trace with hash -85054433, now seen corresponding path program 1 times [2024-11-16 03:58:43,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:43,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049483901] [2024-11-16 03:58:43,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:43,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:43,706 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:43,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:43,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049483901] [2024-11-16 03:58:43,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049483901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:43,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:43,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:58:43,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326954091] [2024-11-16 03:58:43,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:43,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:43,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:43,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:43,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:43,713 INFO L87 Difference]: Start difference. First operand 1862 states and 2872 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:47,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:47,136 INFO L93 Difference]: Finished difference Result 5325 states and 8237 transitions. [2024-11-16 03:58:47,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:47,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-16 03:58:47,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:47,145 INFO L225 Difference]: With dead ends: 5325 [2024-11-16 03:58:47,146 INFO L226 Difference]: Without dead ends: 3465 [2024-11-16 03:58:47,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:47,150 INFO L432 NwaCegarLoop]: 1041 mSDtfsCounter, 827 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 877 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:47,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 1195 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [877 Valid, 2402 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 03:58:47,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2024-11-16 03:58:47,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3464. [2024-11-16 03:58:47,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3464 states, 3463 states have (on average 1.3800173260179036) internal successors, (4779), 3463 states have internal predecessors, (4779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:47,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3464 states to 3464 states and 4779 transitions. [2024-11-16 03:58:47,192 INFO L78 Accepts]: Start accepts. Automaton has 3464 states and 4779 transitions. Word has length 101 [2024-11-16 03:58:47,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:47,193 INFO L471 AbstractCegarLoop]: Abstraction has 3464 states and 4779 transitions. [2024-11-16 03:58:47,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:47,194 INFO L276 IsEmpty]: Start isEmpty. Operand 3464 states and 4779 transitions. [2024-11-16 03:58:47,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 03:58:47,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:47,196 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:47,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:58:47,196 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:47,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:47,197 INFO L85 PathProgramCache]: Analyzing trace with hash 2034467943, now seen corresponding path program 1 times [2024-11-16 03:58:47,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:47,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251872854] [2024-11-16 03:58:47,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:47,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:47,370 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:47,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:47,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251872854] [2024-11-16 03:58:47,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251872854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:47,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:47,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:58:47,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551036503] [2024-11-16 03:58:47,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:47,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:47,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:47,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:47,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:47,373 INFO L87 Difference]: Start difference. First operand 3464 states and 4779 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:50,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:50,530 INFO L93 Difference]: Finished difference Result 10109 states and 13953 transitions. [2024-11-16 03:58:50,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:50,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-11-16 03:58:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:50,549 INFO L225 Difference]: With dead ends: 10109 [2024-11-16 03:58:50,552 INFO L226 Difference]: Without dead ends: 6647 [2024-11-16 03:58:50,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:50,556 INFO L432 NwaCegarLoop]: 773 mSDtfsCounter, 933 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2551 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 3315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 2551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:50,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 906 Invalid, 3315 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [764 Valid, 2551 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 03:58:50,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6647 states. [2024-11-16 03:58:50,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6647 to 6640. [2024-11-16 03:58:50,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6640 states, 6639 states have (on average 1.2718782949239342) internal successors, (8444), 6639 states have internal predecessors, (8444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:50,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6640 states to 6640 states and 8444 transitions. [2024-11-16 03:58:50,641 INFO L78 Accepts]: Start accepts. Automaton has 6640 states and 8444 transitions. Word has length 115 [2024-11-16 03:58:50,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:50,644 INFO L471 AbstractCegarLoop]: Abstraction has 6640 states and 8444 transitions. [2024-11-16 03:58:50,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:50,645 INFO L276 IsEmpty]: Start isEmpty. Operand 6640 states and 8444 transitions. [2024-11-16 03:58:50,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 03:58:50,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:50,646 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:50,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:58:50,646 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:50,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:50,646 INFO L85 PathProgramCache]: Analyzing trace with hash 278317057, now seen corresponding path program 1 times [2024-11-16 03:58:50,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:50,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616377856] [2024-11-16 03:58:50,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:50,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:50,747 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:50,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:50,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616377856] [2024-11-16 03:58:50,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616377856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:50,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:50,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:50,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657043661] [2024-11-16 03:58:50,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:50,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:50,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:50,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:50,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:50,751 INFO L87 Difference]: Start difference. First operand 6640 states and 8444 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:53,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:53,858 INFO L93 Difference]: Finished difference Result 16459 states and 21441 transitions. [2024-11-16 03:58:53,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:53,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-16 03:58:53,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:53,882 INFO L225 Difference]: With dead ends: 16459 [2024-11-16 03:58:53,883 INFO L226 Difference]: Without dead ends: 9821 [2024-11-16 03:58:53,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:53,895 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 1012 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 1004 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 3396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1004 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:53,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 835 Invalid, 3396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1004 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 03:58:53,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9821 states. [2024-11-16 03:58:54,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9821 to 9810. [2024-11-16 03:58:54,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9810 states, 9809 states have (on average 1.2735243144051382) internal successors, (12492), 9809 states have internal predecessors, (12492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:54,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9810 states to 9810 states and 12492 transitions. [2024-11-16 03:58:54,102 INFO L78 Accepts]: Start accepts. Automaton has 9810 states and 12492 transitions. Word has length 118 [2024-11-16 03:58:54,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:54,104 INFO L471 AbstractCegarLoop]: Abstraction has 9810 states and 12492 transitions. [2024-11-16 03:58:54,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:54,104 INFO L276 IsEmpty]: Start isEmpty. Operand 9810 states and 12492 transitions. [2024-11-16 03:58:54,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 03:58:54,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:54,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:54,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:58:54,110 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:54,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:54,110 INFO L85 PathProgramCache]: Analyzing trace with hash 226074799, now seen corresponding path program 1 times [2024-11-16 03:58:54,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:54,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807352135] [2024-11-16 03:58:54,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:54,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:54,582 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:54,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:54,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807352135] [2024-11-16 03:58:54,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807352135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:54,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:54,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:54,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626242632] [2024-11-16 03:58:54,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:54,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:58:54,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:54,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:58:54,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:58:54,587 INFO L87 Difference]: Start difference. First operand 9810 states and 12492 transitions. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:00,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:59:00,539 INFO L93 Difference]: Finished difference Result 29928 states and 37918 transitions. [2024-11-16 03:59:00,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:59:00,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 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 195 [2024-11-16 03:59:00,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:59:00,585 INFO L225 Difference]: With dead ends: 29928 [2024-11-16 03:59:00,586 INFO L226 Difference]: Without dead ends: 20120 [2024-11-16 03:59:00,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:59:00,617 INFO L432 NwaCegarLoop]: 1036 mSDtfsCounter, 2127 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 5793 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 6340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 5793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:59:00,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2127 Valid, 1316 Invalid, 6340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 5793 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-16 03:59:00,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20120 states. [2024-11-16 03:59:00,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20120 to 20092. [2024-11-16 03:59:00,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20092 states, 20091 states have (on average 1.1842616096759744) internal successors, (23793), 20091 states have internal predecessors, (23793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:01,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20092 states to 20092 states and 23793 transitions. [2024-11-16 03:59:01,004 INFO L78 Accepts]: Start accepts. Automaton has 20092 states and 23793 transitions. Word has length 195 [2024-11-16 03:59:01,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:59:01,004 INFO L471 AbstractCegarLoop]: Abstraction has 20092 states and 23793 transitions. [2024-11-16 03:59:01,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:01,005 INFO L276 IsEmpty]: Start isEmpty. Operand 20092 states and 23793 transitions. [2024-11-16 03:59:01,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-16 03:59:01,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:59:01,008 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:59:01,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:59:01,008 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:59:01,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:59:01,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1313114623, now seen corresponding path program 1 times [2024-11-16 03:59:01,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:59:01,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962461163] [2024-11-16 03:59:01,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:01,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:59:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:01,194 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:59:01,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:59:01,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962461163] [2024-11-16 03:59:01,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962461163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:59:01,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:59:01,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:59:01,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805276358] [2024-11-16 03:59:01,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:59:01,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:59:01,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:59:01,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:59:01,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:01,198 INFO L87 Difference]: Start difference. First operand 20092 states and 23793 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:04,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:59:04,302 INFO L93 Difference]: Finished difference Result 45712 states and 54337 transitions. [2024-11-16 03:59:04,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:59:04,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 229 [2024-11-16 03:59:04,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:59:04,348 INFO L225 Difference]: With dead ends: 45712 [2024-11-16 03:59:04,349 INFO L226 Difference]: Without dead ends: 26410 [2024-11-16 03:59:04,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:04,371 INFO L432 NwaCegarLoop]: 832 mSDtfsCounter, 859 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 2388 mSolverCounterSat, 655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 3043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 655 IncrementalHoareTripleChecker+Valid, 2388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:59:04,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 954 Invalid, 3043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [655 Valid, 2388 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 03:59:04,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26410 states. [2024-11-16 03:59:04,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26410 to 25611. [2024-11-16 03:59:04,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25611 states, 25610 states have (on average 1.1773525966419367) internal successors, (30152), 25610 states have internal predecessors, (30152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:04,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25611 states to 25611 states and 30152 transitions. [2024-11-16 03:59:04,753 INFO L78 Accepts]: Start accepts. Automaton has 25611 states and 30152 transitions. Word has length 229 [2024-11-16 03:59:04,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:59:04,754 INFO L471 AbstractCegarLoop]: Abstraction has 25611 states and 30152 transitions. [2024-11-16 03:59:04,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:04,754 INFO L276 IsEmpty]: Start isEmpty. Operand 25611 states and 30152 transitions. [2024-11-16 03:59:04,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-16 03:59:04,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:59:04,763 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:59:04,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:59:04,763 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:59:04,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:59:04,764 INFO L85 PathProgramCache]: Analyzing trace with hash 453947532, now seen corresponding path program 1 times [2024-11-16 03:59:04,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:59:04,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900226021] [2024-11-16 03:59:04,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:04,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:59:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:59:05,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:59:05,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900226021] [2024-11-16 03:59:05,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900226021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:59:05,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:59:05,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:59:05,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200745445] [2024-11-16 03:59:05,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:59:05,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:59:05,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:59:05,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:59:05,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:05,132 INFO L87 Difference]: Start difference. First operand 25611 states and 30152 transitions. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:07,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:59:07,955 INFO L93 Difference]: Finished difference Result 51253 states and 60362 transitions. [2024-11-16 03:59:07,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:59:07,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 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 292 [2024-11-16 03:59:07,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:59:07,987 INFO L225 Difference]: With dead ends: 51253 [2024-11-16 03:59:07,988 INFO L226 Difference]: Without dead ends: 26432 [2024-11-16 03:59:08,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:08,008 INFO L432 NwaCegarLoop]: 1778 mSDtfsCounter, 722 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 2542 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 2542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:59:08,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 1923 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 2542 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:59:08,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26432 states. [2024-11-16 03:59:08,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26432 to 26400. [2024-11-16 03:59:08,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26400 states, 26399 states have (on average 1.160877305958559) internal successors, (30646), 26399 states have internal predecessors, (30646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:08,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26400 states to 26400 states and 30646 transitions. [2024-11-16 03:59:08,513 INFO L78 Accepts]: Start accepts. Automaton has 26400 states and 30646 transitions. Word has length 292 [2024-11-16 03:59:08,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:59:08,514 INFO L471 AbstractCegarLoop]: Abstraction has 26400 states and 30646 transitions. [2024-11-16 03:59:08,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:08,514 INFO L276 IsEmpty]: Start isEmpty. Operand 26400 states and 30646 transitions. [2024-11-16 03:59:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-11-16 03:59:08,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:59:08,518 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:59:08,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:59:08,518 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:59:08,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:59:08,519 INFO L85 PathProgramCache]: Analyzing trace with hash -182659736, now seen corresponding path program 1 times [2024-11-16 03:59:08,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:59:08,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945826994] [2024-11-16 03:59:08,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:08,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:59:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:08,702 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-16 03:59:08,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:59:08,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945826994] [2024-11-16 03:59:08,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945826994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:59:08,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:59:08,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:59:08,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282605199] [2024-11-16 03:59:08,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:59:08,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:59:08,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:59:08,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:59:08,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:59:08,706 INFO L87 Difference]: Start difference. First operand 26400 states and 30646 transitions. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:15,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:59:15,450 INFO L93 Difference]: Finished difference Result 77441 states and 91973 transitions. [2024-11-16 03:59:15,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:59:15,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 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 319 [2024-11-16 03:59:15,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:59:15,509 INFO L225 Difference]: With dead ends: 77441 [2024-11-16 03:59:15,509 INFO L226 Difference]: Without dead ends: 51831 [2024-11-16 03:59:15,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:59:15,525 INFO L432 NwaCegarLoop]: 860 mSDtfsCounter, 1707 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 7165 mSolverCounterSat, 990 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 8155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 990 IncrementalHoareTripleChecker+Valid, 7165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:59:15,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 1131 Invalid, 8155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [990 Valid, 7165 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-16 03:59:15,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51831 states. [2024-11-16 03:59:15,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51831 to 51707. [2024-11-16 03:59:15,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51707 states, 51706 states have (on average 1.166963215100762) internal successors, (60339), 51706 states have internal predecessors, (60339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:15,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51707 states to 51707 states and 60339 transitions. [2024-11-16 03:59:15,968 INFO L78 Accepts]: Start accepts. Automaton has 51707 states and 60339 transitions. Word has length 319 [2024-11-16 03:59:15,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:59:15,970 INFO L471 AbstractCegarLoop]: Abstraction has 51707 states and 60339 transitions. [2024-11-16 03:59:15,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:15,970 INFO L276 IsEmpty]: Start isEmpty. Operand 51707 states and 60339 transitions. [2024-11-16 03:59:15,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-16 03:59:15,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:59:15,976 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:59:15,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:59:15,976 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:59:15,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:59:15,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1653614787, now seen corresponding path program 1 times [2024-11-16 03:59:15,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:59:15,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190253909] [2024-11-16 03:59:15,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:15,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:59:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-16 03:59:16,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:59:16,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190253909] [2024-11-16 03:59:16,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190253909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:59:16,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:59:16,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:59:16,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725444374] [2024-11-16 03:59:16,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:59:16,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:59:16,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:59:16,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:59:16,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:16,581 INFO L87 Difference]: Start difference. First operand 51707 states and 60339 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:19,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:59:19,748 INFO L93 Difference]: Finished difference Result 102622 states and 119882 transitions. [2024-11-16 03:59:19,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:59:19,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 347 [2024-11-16 03:59:19,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:59:19,818 INFO L225 Difference]: With dead ends: 102622 [2024-11-16 03:59:19,818 INFO L226 Difference]: Without dead ends: 51705 [2024-11-16 03:59:19,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:19,855 INFO L432 NwaCegarLoop]: 1377 mSDtfsCounter, 1189 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 2473 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 2924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 2473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:59:19,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 1463 Invalid, 2924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 2473 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 03:59:19,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51705 states. [2024-11-16 03:59:20,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51705 to 51704. [2024-11-16 03:59:20,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51704 states, 51703 states have (on average 1.1310949074521788) internal successors, (58481), 51703 states have internal predecessors, (58481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:20,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51704 states to 51704 states and 58481 transitions. [2024-11-16 03:59:20,492 INFO L78 Accepts]: Start accepts. Automaton has 51704 states and 58481 transitions. Word has length 347 [2024-11-16 03:59:20,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:59:20,493 INFO L471 AbstractCegarLoop]: Abstraction has 51704 states and 58481 transitions. [2024-11-16 03:59:20,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:20,493 INFO L276 IsEmpty]: Start isEmpty. Operand 51704 states and 58481 transitions. [2024-11-16 03:59:20,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-16 03:59:20,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:59:20,501 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:59:20,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:59:20,502 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:59:20,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:59:20,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1684471585, now seen corresponding path program 1 times [2024-11-16 03:59:20,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:59:20,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390699426] [2024-11-16 03:59:20,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:20,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:59:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:22,118 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 289 proven. 114 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-16 03:59:22,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:59:22,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390699426] [2024-11-16 03:59:22,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390699426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:59:22,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737289456] [2024-11-16 03:59:22,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:22,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:59:22,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:59:22,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:59:22,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:59:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:22,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:59:22,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:59:22,525 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-16 03:59:22,525 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:59:22,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737289456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:59:22,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:59:22,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-16 03:59:22,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838859076] [2024-11-16 03:59:22,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:59:22,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:59:22,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:59:22,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:59:22,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-16 03:59:22,528 INFO L87 Difference]: Start difference. First operand 51704 states and 58481 transitions. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:25,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:59:25,665 INFO L93 Difference]: Finished difference Result 112854 states and 129007 transitions. [2024-11-16 03:59:25,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:59:25,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 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 461 [2024-11-16 03:59:25,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:59:25,724 INFO L225 Difference]: With dead ends: 112854 [2024-11-16 03:59:25,724 INFO L226 Difference]: Without dead ends: 61940 [2024-11-16 03:59:25,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-16 03:59:25,752 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 1146 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 951 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 3215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 951 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:59:25,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 444 Invalid, 3215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [951 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 03:59:25,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61940 states. [2024-11-16 03:59:26,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61940 to 61940. [2024-11-16 03:59:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61940 states, 61939 states have (on average 1.1333085777942815) internal successors, (70196), 61939 states have internal predecessors, (70196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:26,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61940 states to 61940 states and 70196 transitions. [2024-11-16 03:59:26,483 INFO L78 Accepts]: Start accepts. Automaton has 61940 states and 70196 transitions. Word has length 461 [2024-11-16 03:59:26,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:59:26,487 INFO L471 AbstractCegarLoop]: Abstraction has 61940 states and 70196 transitions. [2024-11-16 03:59:26,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:26,487 INFO L276 IsEmpty]: Start isEmpty. Operand 61940 states and 70196 transitions. [2024-11-16 03:59:26,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-16 03:59:26,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:59:26,517 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:59:26,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 03:59:26,717 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,SelfDestructingSolverStorable9 [2024-11-16 03:59:26,717 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:59:26,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:59:26,718 INFO L85 PathProgramCache]: Analyzing trace with hash 657886270, now seen corresponding path program 1 times [2024-11-16 03:59:26,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:59:26,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091630497] [2024-11-16 03:59:26,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:26,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:59:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:27,084 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 415 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-16 03:59:27,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:59:27,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091630497] [2024-11-16 03:59:27,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091630497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:59:27,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:59:27,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:59:27,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176928931] [2024-11-16 03:59:27,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:59:27,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:59:27,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:59:27,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:59:27,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:27,086 INFO L87 Difference]: Start difference. First operand 61940 states and 70196 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:30,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:59:30,489 INFO L93 Difference]: Finished difference Result 134910 states and 153933 transitions. [2024-11-16 03:59:30,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:59:30,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 480 [2024-11-16 03:59:30,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:59:30,561 INFO L225 Difference]: With dead ends: 134910 [2024-11-16 03:59:30,562 INFO L226 Difference]: Without dead ends: 73760 [2024-11-16 03:59:30,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:30,592 INFO L432 NwaCegarLoop]: 1767 mSDtfsCounter, 730 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 713 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 3251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 713 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:59:30,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 1913 Invalid, 3251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [713 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-16 03:59:30,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73760 states. [2024-11-16 03:59:31,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73760 to 73741. [2024-11-16 03:59:31,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73741 states, 73740 states have (on average 1.1096148630322755) internal successors, (81823), 73740 states have internal predecessors, (81823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:31,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73741 states to 73741 states and 81823 transitions. [2024-11-16 03:59:31,442 INFO L78 Accepts]: Start accepts. Automaton has 73741 states and 81823 transitions. Word has length 480 [2024-11-16 03:59:31,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:59:31,444 INFO L471 AbstractCegarLoop]: Abstraction has 73741 states and 81823 transitions. [2024-11-16 03:59:31,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:31,444 INFO L276 IsEmpty]: Start isEmpty. Operand 73741 states and 81823 transitions. [2024-11-16 03:59:31,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2024-11-16 03:59:31,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:59:31,457 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:59:31,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:59:31,457 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:59:31,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:59:31,457 INFO L85 PathProgramCache]: Analyzing trace with hash -614022811, now seen corresponding path program 1 times [2024-11-16 03:59:31,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:59:31,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920496066] [2024-11-16 03:59:31,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:31,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:59:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:32,810 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 291 proven. 76 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-16 03:59:32,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:59:32,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920496066] [2024-11-16 03:59:32,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920496066] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:59:32,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097520549] [2024-11-16 03:59:32,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:32,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:59:32,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:59:32,813 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:59:32,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:59:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:33,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:59:33,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:59:33,218 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-16 03:59:33,218 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:59:33,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097520549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:59:33,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:59:33,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 03:59:33,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534541839] [2024-11-16 03:59:33,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:59:33,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:59:33,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:59:33,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:59:33,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:59:33,220 INFO L87 Difference]: Start difference. First operand 73741 states and 81823 transitions. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:36,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:59:36,773 INFO L93 Difference]: Finished difference Result 204413 states and 226803 transitions. [2024-11-16 03:59:36,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:59:36,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 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 498 [2024-11-16 03:59:36,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:59:37,204 INFO L225 Difference]: With dead ends: 204413 [2024-11-16 03:59:37,204 INFO L226 Difference]: Without dead ends: 131462 [2024-11-16 03:59:37,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:59:37,236 INFO L432 NwaCegarLoop]: 749 mSDtfsCounter, 958 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 2642 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 3156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 2642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:59:37,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 949 Invalid, 3156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 2642 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 03:59:37,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131462 states. [2024-11-16 03:59:38,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131462 to 131415. [2024-11-16 03:59:38,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131415 states, 131414 states have (on average 1.090819851766174) internal successors, (143349), 131414 states have internal predecessors, (143349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:38,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131415 states to 131415 states and 143349 transitions. [2024-11-16 03:59:38,910 INFO L78 Accepts]: Start accepts. Automaton has 131415 states and 143349 transitions. Word has length 498 [2024-11-16 03:59:38,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:59:38,910 INFO L471 AbstractCegarLoop]: Abstraction has 131415 states and 143349 transitions. [2024-11-16 03:59:38,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:38,911 INFO L276 IsEmpty]: Start isEmpty. Operand 131415 states and 143349 transitions. [2024-11-16 03:59:38,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-16 03:59:38,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:59:38,926 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:59:38,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 03:59:39,126 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,SelfDestructingSolverStorable11 [2024-11-16 03:59:39,128 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:59:39,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:59:39,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1789661679, now seen corresponding path program 1 times [2024-11-16 03:59:39,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:59:39,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114536860] [2024-11-16 03:59:39,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:39,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:59:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2024-11-16 03:59:39,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:59:39,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114536860] [2024-11-16 03:59:39,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114536860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:59:39,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:59:39,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:59:39,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074236168] [2024-11-16 03:59:39,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:59:39,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:59:39,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:59:39,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:59:39,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:39,328 INFO L87 Difference]: Start difference. First operand 131415 states and 143349 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:41,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:59:41,759 INFO L93 Difference]: Finished difference Result 262019 states and 285882 transitions. [2024-11-16 03:59:41,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:59:41,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 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 518 [2024-11-16 03:59:41,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:59:41,928 INFO L225 Difference]: With dead ends: 262019 [2024-11-16 03:59:41,928 INFO L226 Difference]: Without dead ends: 131394 [2024-11-16 03:59:41,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:41,982 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 1645 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:59:41,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 310 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 03:59:42,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131394 states. [2024-11-16 03:59:43,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131394 to 131392. [2024-11-16 03:59:43,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131392 states, 131391 states have (on average 1.0906454780007764) internal successors, (143301), 131391 states have internal predecessors, (143301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:43,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131392 states to 131392 states and 143301 transitions. [2024-11-16 03:59:43,899 INFO L78 Accepts]: Start accepts. Automaton has 131392 states and 143301 transitions. Word has length 518 [2024-11-16 03:59:43,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:59:43,899 INFO L471 AbstractCegarLoop]: Abstraction has 131392 states and 143301 transitions. [2024-11-16 03:59:43,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:43,900 INFO L276 IsEmpty]: Start isEmpty. Operand 131392 states and 143301 transitions. [2024-11-16 03:59:43,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2024-11-16 03:59:43,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:59:43,914 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-16 03:59:43,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:59:43,914 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:59:43,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:59:43,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1142652519, now seen corresponding path program 1 times [2024-11-16 03:59:43,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:59:43,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136304310] [2024-11-16 03:59:43,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:43,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:59:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-16 03:59:44,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:59:44,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136304310] [2024-11-16 03:59:44,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136304310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:59:44,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:59:44,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:59:44,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375440386] [2024-11-16 03:59:44,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:59:44,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:59:44,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:59:44,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:59:44,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:44,060 INFO L87 Difference]: Start difference. First operand 131392 states and 143301 transitions. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:47,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:59:47,645 INFO L93 Difference]: Finished difference Result 242105 states and 264300 transitions. [2024-11-16 03:59:47,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:59:47,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 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 525 [2024-11-16 03:59:47,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:59:47,773 INFO L225 Difference]: With dead ends: 242105 [2024-11-16 03:59:47,773 INFO L226 Difference]: Without dead ends: 108350 [2024-11-16 03:59:47,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:47,834 INFO L432 NwaCegarLoop]: 1469 mSDtfsCounter, 1000 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 2323 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 2907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 2323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:59:47,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 1594 Invalid, 2907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 2323 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 03:59:47,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108350 states. [2024-11-16 03:59:49,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108350 to 105192. [2024-11-16 03:59:49,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105192 states, 105191 states have (on average 1.0678480098107253) internal successors, (112328), 105191 states have internal predecessors, (112328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:49,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105192 states to 105192 states and 112328 transitions. [2024-11-16 03:59:49,418 INFO L78 Accepts]: Start accepts. Automaton has 105192 states and 112328 transitions. Word has length 525 [2024-11-16 03:59:49,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:59:49,423 INFO L471 AbstractCegarLoop]: Abstraction has 105192 states and 112328 transitions. [2024-11-16 03:59:49,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand 105192 states and 112328 transitions. [2024-11-16 03:59:49,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-16 03:59:49,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:59:49,455 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:59:49,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:59:49,456 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:59:49,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:59:49,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1895190077, now seen corresponding path program 1 times [2024-11-16 03:59:49,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:59:49,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622292984] [2024-11-16 03:59:49,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:49,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:59:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:50,753 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 415 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-16 03:59:50,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:59:50,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622292984] [2024-11-16 03:59:50,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622292984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:59:50,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:59:50,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:59:50,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185454550] [2024-11-16 03:59:50,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:59:50,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:59:50,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:59:50,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:59:50,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:50,756 INFO L87 Difference]: Start difference. First operand 105192 states and 112328 transitions. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:54,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:59:54,204 INFO L93 Difference]: Finished difference Result 210386 states and 224705 transitions. [2024-11-16 03:59:54,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:59:54,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 531 [2024-11-16 03:59:54,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:59:54,319 INFO L225 Difference]: With dead ends: 210386 [2024-11-16 03:59:54,320 INFO L226 Difference]: Without dead ends: 105984 [2024-11-16 03:59:54,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:59:54,342 INFO L432 NwaCegarLoop]: 1768 mSDtfsCounter, 609 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 2502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:59:54,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 1895 Invalid, 2502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 03:59:54,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105984 states. [2024-11-16 03:59:55,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105984 to 105981. [2024-11-16 03:59:55,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105981 states, 105980 states have (on average 1.0676259671636157) internal successors, (113147), 105980 states have internal predecessors, (113147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:55,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105981 states to 105981 states and 113147 transitions. [2024-11-16 03:59:55,492 INFO L78 Accepts]: Start accepts. Automaton has 105981 states and 113147 transitions. Word has length 531 [2024-11-16 03:59:55,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:59:55,493 INFO L471 AbstractCegarLoop]: Abstraction has 105981 states and 113147 transitions. [2024-11-16 03:59:55,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:55,493 INFO L276 IsEmpty]: Start isEmpty. Operand 105981 states and 113147 transitions. [2024-11-16 03:59:55,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-11-16 03:59:55,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:59:55,507 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:59:55,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 03:59:55,507 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:59:55,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:59:55,508 INFO L85 PathProgramCache]: Analyzing trace with hash 40865205, now seen corresponding path program 1 times [2024-11-16 03:59:55,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:59:55,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873108581] [2024-11-16 03:59:55,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:55,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:59:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:57,322 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 529 proven. 114 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-16 03:59:57,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:59:57,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873108581] [2024-11-16 03:59:57,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873108581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:59:57,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988397187] [2024-11-16 03:59:57,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:59:57,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:59:57,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:59:57,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:59:57,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 03:59:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:59:57,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:59:57,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:59:57,532 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-16 03:59:57,532 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:59:57,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988397187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:59:57,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:59:57,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-16 03:59:57,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530242393] [2024-11-16 03:59:57,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:59:57,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:59:57,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:59:57,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:59:57,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-16 03:59:57,534 INFO L87 Difference]: Start difference. First operand 105981 states and 113147 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:01,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:00:01,570 INFO L93 Difference]: Finished difference Result 255294 states and 272762 transitions. [2024-11-16 04:00:01,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:00:01,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 591 [2024-11-16 04:00:01,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:00:01,755 INFO L225 Difference]: With dead ends: 255294 [2024-11-16 04:00:01,756 INFO L226 Difference]: Without dead ends: 143004 [2024-11-16 04:00:01,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:00:01,835 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 903 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 2530 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 3242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 2530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:00:01,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 1713 Invalid, 3242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 2530 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 04:00:01,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143004 states.