./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label32.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem12_label32.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 d6a56bada7206875b5522c4732ed558727da026e7bf600ff2a0cdce747605d25 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:27:24,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:27:24,154 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:27:24,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:27:24,160 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:27:24,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:27:24,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:27:24,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:27:24,189 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:27:24,190 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:27:24,191 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:27:24,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:27:24,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:27:24,192 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:27:24,193 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:27:24,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:27:24,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:27:24,194 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:27:24,194 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:27:24,194 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:27:24,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:27:24,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:27:24,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:27:24,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:27:24,199 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:27:24,199 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:27:24,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:27:24,199 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:27:24,199 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:27:24,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:27:24,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:27:24,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:27:24,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:27:24,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:27:24,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:27:24,201 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:27:24,201 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:27:24,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:27:24,201 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:27:24,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:27:24,202 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:27:24,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:27:24,202 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6a56bada7206875b5522c4732ed558727da026e7bf600ff2a0cdce747605d25 [2024-11-09 19:27:24,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:27:24,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:27:24,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:27:24,414 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:27:24,414 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:27:24,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label32.c [2024-11-09 19:27:25,609 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:27:25,993 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:27:25,995 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label32.c [2024-11-09 19:27:26,024 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/694929dfe/2e292383f0224763913508d087d7773a/FLAG0b613bddf [2024-11-09 19:27:26,037 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/694929dfe/2e292383f0224763913508d087d7773a [2024-11-09 19:27:26,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:27:26,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:27:26,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:27:26,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:27:26,047 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:27:26,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:27:26" (1/1) ... [2024-11-09 19:27:26,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14429026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:26, skipping insertion in model container [2024-11-09 19:27:26,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:27:26" (1/1) ... [2024-11-09 19:27:26,175 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:27:26,365 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label32.c[5470,5483] [2024-11-09 19:27:26,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:27:26,938 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:27:26,956 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label32.c[5470,5483] [2024-11-09 19:27:27,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:27:27,375 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:27:27,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27 WrapperNode [2024-11-09 19:27:27,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:27:27,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:27:27,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:27:27,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:27:27,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27" (1/1) ... [2024-11-09 19:27:27,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27" (1/1) ... [2024-11-09 19:27:27,541 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-09 19:27:27,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:27:27,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:27:27,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:27:27,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:27:27,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27" (1/1) ... [2024-11-09 19:27:27,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27" (1/1) ... [2024-11-09 19:27:27,692 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27" (1/1) ... [2024-11-09 19:27:27,769 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 19:27:27,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27" (1/1) ... [2024-11-09 19:27:27,770 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27" (1/1) ... [2024-11-09 19:27:27,902 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27" (1/1) ... [2024-11-09 19:27:27,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27" (1/1) ... [2024-11-09 19:27:27,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27" (1/1) ... [2024-11-09 19:27:27,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27" (1/1) ... [2024-11-09 19:27:28,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:27:28,022 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:27:28,022 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:27:28,022 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:27:28,023 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27" (1/1) ... [2024-11-09 19:27:28,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:27:28,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:27:28,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 19:27:28,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 19:27:28,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:27:28,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:27:28,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:27:28,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:27:28,160 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:27:28,162 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:27:33,153 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4665: havoc calculate_output3_#t~ret11#1; [2024-11-09 19:27:33,154 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc calculate_output_#t~ret9#1; [2024-11-09 19:27:33,154 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3175: havoc calculate_output2_#t~ret10#1; [2024-11-09 19:27:33,442 INFO L? ?]: Removed 2039 outVars from TransFormulas that were not future-live. [2024-11-09 19:27:33,446 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:27:33,482 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:27:33,482 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:27:33,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:27:33 BoogieIcfgContainer [2024-11-09 19:27:33,483 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:27:33,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:27:33,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:27:33,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:27:33,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:27:26" (1/3) ... [2024-11-09 19:27:33,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599b839d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:27:33, skipping insertion in model container [2024-11-09 19:27:33,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:27" (2/3) ... [2024-11-09 19:27:33,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599b839d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:27:33, skipping insertion in model container [2024-11-09 19:27:33,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:27:33" (3/3) ... [2024-11-09 19:27:33,492 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label32.c [2024-11-09 19:27:33,515 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:27:33,519 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:27:33,626 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:27:33,634 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;@22559575, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:27:33,635 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:27:33,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 821 states, 819 states have (on average 2.744810744810745) internal successors, (2248), 820 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:33,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 19:27:33,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:27:33,656 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:27:33,656 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:27:33,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:27:33,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1691126308, now seen corresponding path program 1 times [2024-11-09 19:27:33,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:27:33,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102949418] [2024-11-09 19:27:33,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:27:33,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:27:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:27:34,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:27:34,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:27:34,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102949418] [2024-11-09 19:27:34,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102949418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:27:34,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:27:34,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:27:34,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484990363] [2024-11-09 19:27:34,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:27:34,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:27:34,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:27:34,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:27:34,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:27:34,072 INFO L87 Difference]: Start difference. First operand has 821 states, 819 states have (on average 2.744810744810745) internal successors, (2248), 820 states have internal predecessors, (2248), 0 states have call successors, (0), 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 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:38,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:27:38,140 INFO L93 Difference]: Finished difference Result 2394 states and 6675 transitions. [2024-11-09 19:27:38,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:27:38,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-11-09 19:27:38,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:27:38,169 INFO L225 Difference]: With dead ends: 2394 [2024-11-09 19:27:38,170 INFO L226 Difference]: Without dead ends: 1509 [2024-11-09 19:27:38,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:27:38,180 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 1534 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3797 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 4568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 3797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:27:38,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 160 Invalid, 4568 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [771 Valid, 3797 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 19:27:38,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-09 19:27:38,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2024-11-09 19:27:38,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 2.746021220159151) internal successors, (4141), 1508 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:38,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 4141 transitions. [2024-11-09 19:27:38,280 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 4141 transitions. Word has length 45 [2024-11-09 19:27:38,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:27:38,281 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 4141 transitions. [2024-11-09 19:27:38,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:38,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 4141 transitions. [2024-11-09 19:27:38,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 19:27:38,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:27:38,285 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:27:38,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:27:38,285 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:27:38,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:27:38,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1650168477, now seen corresponding path program 1 times [2024-11-09 19:27:38,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:27:38,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81287636] [2024-11-09 19:27:38,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:27:38,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:27:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:27:38,656 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:27:38,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:27:38,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81287636] [2024-11-09 19:27:38,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81287636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:27:38,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:27:38,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:27:38,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246974032] [2024-11-09 19:27:38,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:27:38,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:27:38,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:27:38,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:27:38,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:27:38,663 INFO L87 Difference]: Start difference. First operand 1509 states and 4141 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 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) [2024-11-09 19:27:45,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:27:45,425 INFO L93 Difference]: Finished difference Result 5272 states and 14437 transitions. [2024-11-09 19:27:45,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:27:45,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 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 [2024-11-09 19:27:45,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:27:45,443 INFO L225 Difference]: With dead ends: 5272 [2024-11-09 19:27:45,443 INFO L226 Difference]: Without dead ends: 3765 [2024-11-09 19:27:45,447 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 [2024-11-09 19:27:45,448 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 4220 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 7875 mSolverCounterSat, 1148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4220 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 9023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1148 IncrementalHoareTripleChecker+Valid, 7875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:27:45,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4220 Valid, 716 Invalid, 9023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1148 Valid, 7875 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-09 19:27:45,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2024-11-09 19:27:45,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3765. [2024-11-09 19:27:45,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3765 states, 3764 states have (on average 2.4744952178533475) internal successors, (9314), 3764 states have internal predecessors, (9314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:45,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 9314 transitions. [2024-11-09 19:27:45,541 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 9314 transitions. Word has length 115 [2024-11-09 19:27:45,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:27:45,541 INFO L471 AbstractCegarLoop]: Abstraction has 3765 states and 9314 transitions. [2024-11-09 19:27:45,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 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) [2024-11-09 19:27:45,542 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 9314 transitions. [2024-11-09 19:27:45,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 19:27:45,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:27:45,544 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:27:45,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:27:45,544 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:27:45,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:27:45,548 INFO L85 PathProgramCache]: Analyzing trace with hash 135215017, now seen corresponding path program 1 times [2024-11-09 19:27:45,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:27:45,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042155117] [2024-11-09 19:27:45,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:27:45,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:27:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:27:45,860 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:27:45,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:27:45,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042155117] [2024-11-09 19:27:45,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042155117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:27:45,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:27:45,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:27:45,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986852555] [2024-11-09 19:27:45,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:27:45,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:27:45,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:27:45,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:27:45,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:27:45,865 INFO L87 Difference]: Start difference. First operand 3765 states and 9314 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:49,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:27:49,940 INFO L93 Difference]: Finished difference Result 9822 states and 24419 transitions. [2024-11-09 19:27:49,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:27:49,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2024-11-09 19:27:49,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:27:49,971 INFO L225 Difference]: With dead ends: 9822 [2024-11-09 19:27:49,973 INFO L226 Difference]: Without dead ends: 6021 [2024-11-09 19:27:49,986 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 [2024-11-09 19:27:49,987 INFO L432 NwaCegarLoop]: 696 mSDtfsCounter, 1383 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 5147 mSolverCounterSat, 699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 5846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 5147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:27:49,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 713 Invalid, 5846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 5147 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-09 19:27:49,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2024-11-09 19:27:50,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 5269. [2024-11-09 19:27:50,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5269 states, 5268 states have (on average 2.3177676537585423) internal successors, (12210), 5268 states have internal predecessors, (12210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:50,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 12210 transitions. [2024-11-09 19:27:50,146 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 12210 transitions. Word has length 117 [2024-11-09 19:27:50,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:27:50,148 INFO L471 AbstractCegarLoop]: Abstraction has 5269 states and 12210 transitions. [2024-11-09 19:27:50,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:50,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 12210 transitions. [2024-11-09 19:27:50,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-09 19:27:50,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:27:50,158 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:27:50,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:27:50,159 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:27:50,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:27:50,163 INFO L85 PathProgramCache]: Analyzing trace with hash -917062208, now seen corresponding path program 1 times [2024-11-09 19:27:50,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:27:50,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611887660] [2024-11-09 19:27:50,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:27:50,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:27:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:27:50,496 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-09 19:27:50,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:27:50,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611887660] [2024-11-09 19:27:50,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611887660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:27:50,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:27:50,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:27:50,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086505603] [2024-11-09 19:27:50,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:27:50,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:27:50,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:27:50,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:27:50,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:27:50,501 INFO L87 Difference]: Start difference. First operand 5269 states and 12210 transitions. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:54,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:27:54,279 INFO L93 Difference]: Finished difference Result 13585 states and 32212 transitions. [2024-11-09 19:27:54,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:27:54,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 259 [2024-11-09 19:27:54,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:27:54,337 INFO L225 Difference]: With dead ends: 13585 [2024-11-09 19:27:54,338 INFO L226 Difference]: Without dead ends: 8280 [2024-11-09 19:27:54,346 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 [2024-11-09 19:27:54,350 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 1531 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 5448 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 6001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 5448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:27:54,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 331 Invalid, 6001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 5448 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 19:27:54,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8280 states. [2024-11-09 19:27:54,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8280 to 8277. [2024-11-09 19:27:54,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8277 states, 8276 states have (on average 2.2799661672305462) internal successors, (18869), 8276 states have internal predecessors, (18869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:54,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8277 states to 8277 states and 18869 transitions. [2024-11-09 19:27:54,490 INFO L78 Accepts]: Start accepts. Automaton has 8277 states and 18869 transitions. Word has length 259 [2024-11-09 19:27:54,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:27:54,490 INFO L471 AbstractCegarLoop]: Abstraction has 8277 states and 18869 transitions. [2024-11-09 19:27:54,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:54,491 INFO L276 IsEmpty]: Start isEmpty. Operand 8277 states and 18869 transitions. [2024-11-09 19:27:54,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-09 19:27:54,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:27:54,494 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:27:54,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:27:54,495 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:27:54,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:27:54,495 INFO L85 PathProgramCache]: Analyzing trace with hash -488635518, now seen corresponding path program 1 times [2024-11-09 19:27:54,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:27:54,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035997706] [2024-11-09 19:27:54,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:27:54,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:27:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:27:54,672 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-09 19:27:54,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:27:54,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035997706] [2024-11-09 19:27:54,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035997706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:27:54,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:27:54,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:27:54,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770975062] [2024-11-09 19:27:54,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:27:54,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:27:54,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:27:54,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:27:54,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:27:54,677 INFO L87 Difference]: Start difference. First operand 8277 states and 18869 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:58,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:27:58,050 INFO L93 Difference]: Finished difference Result 21064 states and 47884 transitions. [2024-11-09 19:27:58,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:27:58,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 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 281 [2024-11-09 19:27:58,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:27:58,071 INFO L225 Difference]: With dead ends: 21064 [2024-11-09 19:27:58,071 INFO L226 Difference]: Without dead ends: 12789 [2024-11-09 19:27:58,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:27:58,080 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 1352 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3355 mSolverCounterSat, 756 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 4111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 756 IncrementalHoareTripleChecker+Valid, 3355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:27:58,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1352 Valid, 502 Invalid, 4111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [756 Valid, 3355 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 19:27:58,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12789 states. [2024-11-09 19:27:58,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12789 to 10533. [2024-11-09 19:27:58,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10533 states, 10532 states have (on average 2.12001519179643) internal successors, (22328), 10532 states have internal predecessors, (22328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:58,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10533 states to 10533 states and 22328 transitions. [2024-11-09 19:27:58,246 INFO L78 Accepts]: Start accepts. Automaton has 10533 states and 22328 transitions. Word has length 281 [2024-11-09 19:27:58,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:27:58,246 INFO L471 AbstractCegarLoop]: Abstraction has 10533 states and 22328 transitions. [2024-11-09 19:27:58,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:27:58,247 INFO L276 IsEmpty]: Start isEmpty. Operand 10533 states and 22328 transitions. [2024-11-09 19:27:58,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-09 19:27:58,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:27:58,251 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:27:58,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:27:58,251 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:27:58,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:27:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash 484202537, now seen corresponding path program 1 times [2024-11-09 19:27:58,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:27:58,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137866900] [2024-11-09 19:27:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:27:58,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:27:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:27:58,401 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 19:27:58,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:27:58,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137866900] [2024-11-09 19:27:58,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137866900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:27:58,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:27:58,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:27:58,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579403311] [2024-11-09 19:27:58,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:27:58,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:27:58,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:27:58,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:27:58,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:27:58,403 INFO L87 Difference]: Start difference. First operand 10533 states and 22328 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:02,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:28:02,317 INFO L93 Difference]: Finished difference Result 29336 states and 62587 transitions. [2024-11-09 19:28:02,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:28:02,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 343 [2024-11-09 19:28:02,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:28:02,356 INFO L225 Difference]: With dead ends: 29336 [2024-11-09 19:28:02,356 INFO L226 Difference]: Without dead ends: 18805 [2024-11-09 19:28:02,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:02,369 INFO L432 NwaCegarLoop]: 2016 mSDtfsCounter, 1349 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 4046 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 4416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 4046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:28:02,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 2026 Invalid, 4416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 4046 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 19:28:02,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18805 states. [2024-11-09 19:28:02,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18805 to 18053. [2024-11-09 19:28:02,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18053 states, 18052 states have (on average 2.11095723465544) internal successors, (38107), 18052 states have internal predecessors, (38107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18053 states to 18053 states and 38107 transitions. [2024-11-09 19:28:02,684 INFO L78 Accepts]: Start accepts. Automaton has 18053 states and 38107 transitions. Word has length 343 [2024-11-09 19:28:02,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:28:02,685 INFO L471 AbstractCegarLoop]: Abstraction has 18053 states and 38107 transitions. [2024-11-09 19:28:02,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:02,685 INFO L276 IsEmpty]: Start isEmpty. Operand 18053 states and 38107 transitions. [2024-11-09 19:28:02,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-09 19:28:02,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:28:02,691 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:28:02,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:28:02,691 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:28:02,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:28:02,692 INFO L85 PathProgramCache]: Analyzing trace with hash 253856437, now seen corresponding path program 1 times [2024-11-09 19:28:02,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:28:02,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384926967] [2024-11-09 19:28:02,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:28:02,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:28:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:28:02,955 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-09 19:28:02,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:28:02,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384926967] [2024-11-09 19:28:02,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384926967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:28:02,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:28:02,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:28:02,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034508674] [2024-11-09 19:28:02,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:28:02,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:28:02,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:28:02,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:28:02,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:02,957 INFO L87 Difference]: Start difference. First operand 18053 states and 38107 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:06,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:28:06,149 INFO L93 Difference]: Finished difference Result 50392 states and 106938 transitions. [2024-11-09 19:28:06,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:28:06,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 [2024-11-09 19:28:06,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:28:06,199 INFO L225 Difference]: With dead ends: 50392 [2024-11-09 19:28:06,200 INFO L226 Difference]: Without dead ends: 32341 [2024-11-09 19:28:06,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:06,219 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 1401 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3567 mSolverCounterSat, 694 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 4261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 694 IncrementalHoareTripleChecker+Valid, 3567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:28:06,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 383 Invalid, 4261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [694 Valid, 3567 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 19:28:06,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32341 states. [2024-11-09 19:28:06,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32341 to 31589. [2024-11-09 19:28:06,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31589 states, 31588 states have (on average 2.0881663923008738) internal successors, (65961), 31588 states have internal predecessors, (65961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:06,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31589 states to 31589 states and 65961 transitions. [2024-11-09 19:28:06,726 INFO L78 Accepts]: Start accepts. Automaton has 31589 states and 65961 transitions. Word has length 347 [2024-11-09 19:28:06,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:28:06,726 INFO L471 AbstractCegarLoop]: Abstraction has 31589 states and 65961 transitions. [2024-11-09 19:28:06,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:06,727 INFO L276 IsEmpty]: Start isEmpty. Operand 31589 states and 65961 transitions. [2024-11-09 19:28:06,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-11-09 19:28:06,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:28:06,736 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:28:06,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:28:06,736 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:28:06,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:28:06,736 INFO L85 PathProgramCache]: Analyzing trace with hash -2089821419, now seen corresponding path program 1 times [2024-11-09 19:28:06,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:28:06,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368854691] [2024-11-09 19:28:06,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:28:06,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:28:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:28:06,931 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-09 19:28:06,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:28:06,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368854691] [2024-11-09 19:28:06,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368854691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:28:06,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:28:06,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:28:06,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553943138] [2024-11-09 19:28:06,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:28:06,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:28:06,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:28:06,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:28:06,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:06,933 INFO L87 Difference]: Start difference. First operand 31589 states and 65961 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 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) [2024-11-09 19:28:10,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:28:10,197 INFO L93 Difference]: Finished difference Result 78968 states and 165466 transitions. [2024-11-09 19:28:10,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:28:10,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 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 379 [2024-11-09 19:28:10,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:28:10,262 INFO L225 Difference]: With dead ends: 78968 [2024-11-09 19:28:10,262 INFO L226 Difference]: Without dead ends: 47381 [2024-11-09 19:28:10,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:10,291 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 1415 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3802 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 4264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 3802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:28:10,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1415 Valid, 302 Invalid, 4264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 3802 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 19:28:10,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47381 states. [2024-11-09 19:28:10,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47381 to 45877. [2024-11-09 19:28:11,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45877 states, 45876 states have (on average 2.0844668236114745) internal successors, (95627), 45876 states have internal predecessors, (95627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:11,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45877 states to 45877 states and 95627 transitions. [2024-11-09 19:28:11,494 INFO L78 Accepts]: Start accepts. Automaton has 45877 states and 95627 transitions. Word has length 379 [2024-11-09 19:28:11,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:28:11,495 INFO L471 AbstractCegarLoop]: Abstraction has 45877 states and 95627 transitions. [2024-11-09 19:28:11,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 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) [2024-11-09 19:28:11,495 INFO L276 IsEmpty]: Start isEmpty. Operand 45877 states and 95627 transitions. [2024-11-09 19:28:11,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-09 19:28:11,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:28:11,503 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:28:11,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:28:11,503 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:28:11,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:28:11,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1203108433, now seen corresponding path program 1 times [2024-11-09 19:28:11,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:28:11,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128697638] [2024-11-09 19:28:11,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:28:11,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:28:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:28:11,797 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-09 19:28:11,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:28:11,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128697638] [2024-11-09 19:28:11,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128697638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:28:11,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:28:11,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:28:11,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786429730] [2024-11-09 19:28:11,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:28:11,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:28:11,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:28:11,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:28:11,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:11,799 INFO L87 Difference]: Start difference. First operand 45877 states and 95627 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:15,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:28:15,267 INFO L93 Difference]: Finished difference Result 111304 states and 233934 transitions. [2024-11-09 19:28:15,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:28:15,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 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 399 [2024-11-09 19:28:15,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:28:15,364 INFO L225 Difference]: With dead ends: 111304 [2024-11-09 19:28:15,364 INFO L226 Difference]: Without dead ends: 65429 [2024-11-09 19:28:15,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:15,397 INFO L432 NwaCegarLoop]: 1922 mSDtfsCounter, 1357 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3638 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 4071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 3638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:28:15,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1357 Valid, 1932 Invalid, 4071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 3638 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 19:28:15,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65429 states. [2024-11-09 19:28:16,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65429 to 65429. [2024-11-09 19:28:16,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65429 states, 65428 states have (on average 2.0568258238063213) internal successors, (134574), 65428 states have internal predecessors, (134574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:16,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65429 states to 65429 states and 134574 transitions. [2024-11-09 19:28:16,324 INFO L78 Accepts]: Start accepts. Automaton has 65429 states and 134574 transitions. Word has length 399 [2024-11-09 19:28:16,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:28:16,326 INFO L471 AbstractCegarLoop]: Abstraction has 65429 states and 134574 transitions. [2024-11-09 19:28:16,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:16,326 INFO L276 IsEmpty]: Start isEmpty. Operand 65429 states and 134574 transitions. [2024-11-09 19:28:16,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-09 19:28:16,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:28:16,331 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:28:16,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:28:16,332 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:28:16,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:28:16,332 INFO L85 PathProgramCache]: Analyzing trace with hash 794177629, now seen corresponding path program 1 times [2024-11-09 19:28:16,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:28:16,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015782105] [2024-11-09 19:28:16,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:28:16,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:28:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:28:16,770 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-09 19:28:16,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:28:16,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015782105] [2024-11-09 19:28:16,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015782105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:28:16,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:28:16,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:28:16,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239538217] [2024-11-09 19:28:16,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:28:16,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:28:16,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:28:16,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:28:16,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:16,773 INFO L87 Difference]: Start difference. First operand 65429 states and 134574 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:20,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:28:20,334 INFO L93 Difference]: Finished difference Result 149656 states and 310208 transitions. [2024-11-09 19:28:20,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:28:20,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 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 403 [2024-11-09 19:28:20,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:28:20,645 INFO L225 Difference]: With dead ends: 149656 [2024-11-09 19:28:20,646 INFO L226 Difference]: Without dead ends: 84229 [2024-11-09 19:28:20,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:20,674 INFO L432 NwaCegarLoop]: 1957 mSDtfsCounter, 1353 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3593 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 4039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 3593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:28:20,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 1967 Invalid, 4039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 3593 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 19:28:20,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84229 states. [2024-11-09 19:28:21,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84229 to 84229. [2024-11-09 19:28:21,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84229 states, 84228 states have (on average 2.0397611245666525) internal successors, (171805), 84228 states have internal predecessors, (171805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:22,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84229 states to 84229 states and 171805 transitions. [2024-11-09 19:28:22,036 INFO L78 Accepts]: Start accepts. Automaton has 84229 states and 171805 transitions. Word has length 403 [2024-11-09 19:28:22,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:28:22,037 INFO L471 AbstractCegarLoop]: Abstraction has 84229 states and 171805 transitions. [2024-11-09 19:28:22,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:22,037 INFO L276 IsEmpty]: Start isEmpty. Operand 84229 states and 171805 transitions. [2024-11-09 19:28:22,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-11-09 19:28:22,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:28:22,041 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:28:22,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:28:22,041 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:28:22,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:28:22,042 INFO L85 PathProgramCache]: Analyzing trace with hash -272464919, now seen corresponding path program 1 times [2024-11-09 19:28:22,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:28:22,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949246844] [2024-11-09 19:28:22,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:28:22,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:28:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:28:22,227 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-09 19:28:22,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:28:22,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949246844] [2024-11-09 19:28:22,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949246844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:28:22,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:28:22,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:28:22,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634025527] [2024-11-09 19:28:22,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:28:22,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:28:22,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:28:22,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:28:22,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:22,229 INFO L87 Difference]: Start difference. First operand 84229 states and 171805 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:26,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:28:26,460 INFO L93 Difference]: Finished difference Result 173720 states and 353777 transitions. [2024-11-09 19:28:26,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:28:26,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 407 [2024-11-09 19:28:26,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:28:26,823 INFO L225 Difference]: With dead ends: 173720 [2024-11-09 19:28:26,823 INFO L226 Difference]: Without dead ends: 89493 [2024-11-09 19:28:26,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:26,840 INFO L432 NwaCegarLoop]: 1870 mSDtfsCounter, 1420 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3445 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 4042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 3445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:28:26,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1420 Valid, 1880 Invalid, 4042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 3445 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-09 19:28:26,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89493 states. [2024-11-09 19:28:27,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89493 to 83477. [2024-11-09 19:28:27,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83477 states, 83476 states have (on average 1.9938425415688341) internal successors, (166438), 83476 states have internal predecessors, (166438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:27,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83477 states to 83477 states and 166438 transitions. [2024-11-09 19:28:27,796 INFO L78 Accepts]: Start accepts. Automaton has 83477 states and 166438 transitions. Word has length 407 [2024-11-09 19:28:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:28:27,797 INFO L471 AbstractCegarLoop]: Abstraction has 83477 states and 166438 transitions. [2024-11-09 19:28:27,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 83477 states and 166438 transitions. [2024-11-09 19:28:27,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-11-09 19:28:27,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:28:27,803 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:28:27,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:28:27,804 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:28:27,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:28:27,804 INFO L85 PathProgramCache]: Analyzing trace with hash -588292884, now seen corresponding path program 1 times [2024-11-09 19:28:27,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:28:27,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802182824] [2024-11-09 19:28:27,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:28:27,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:28:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:28:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-09 19:28:28,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:28:28,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802182824] [2024-11-09 19:28:28,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802182824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:28:28,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:28:28,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:28:28,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586413887] [2024-11-09 19:28:28,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:28:28,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:28:28,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:28:28,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:28:28,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:28,293 INFO L87 Difference]: Start difference. First operand 83477 states and 166438 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:32,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:28:32,502 INFO L93 Difference]: Finished difference Result 209064 states and 417915 transitions. [2024-11-09 19:28:32,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:28:32,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 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 470 [2024-11-09 19:28:32,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:28:32,679 INFO L225 Difference]: With dead ends: 209064 [2024-11-09 19:28:32,679 INFO L226 Difference]: Without dead ends: 120325 [2024-11-09 19:28:32,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:32,737 INFO L432 NwaCegarLoop]: 1964 mSDtfsCounter, 1386 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3569 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 3987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 3569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:28:32,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 1974 Invalid, 3987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 3569 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-09 19:28:32,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120325 states. [2024-11-09 19:28:34,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120325 to 114309. [2024-11-09 19:28:34,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114309 states, 114308 states have (on average 1.985040417118662) internal successors, (226906), 114308 states have internal predecessors, (226906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:34,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114309 states to 114309 states and 226906 transitions. [2024-11-09 19:28:34,257 INFO L78 Accepts]: Start accepts. Automaton has 114309 states and 226906 transitions. Word has length 470 [2024-11-09 19:28:34,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:28:34,257 INFO L471 AbstractCegarLoop]: Abstraction has 114309 states and 226906 transitions. [2024-11-09 19:28:34,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:34,258 INFO L276 IsEmpty]: Start isEmpty. Operand 114309 states and 226906 transitions. [2024-11-09 19:28:34,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-09 19:28:34,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:28:34,268 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:28:34,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:28:34,268 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:28:34,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:28:34,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1335525528, now seen corresponding path program 1 times [2024-11-09 19:28:34,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:28:34,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058623711] [2024-11-09 19:28:34,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:28:34,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:28:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:28:35,273 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 416 proven. 110 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-09 19:28:35,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:28:35,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058623711] [2024-11-09 19:28:35,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058623711] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:28:35,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504316654] [2024-11-09 19:28:35,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:28:35,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:28:35,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:28:35,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:28:35,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:28:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:28:35,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:28:35,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:28:35,923 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 458 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-09 19:28:35,924 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:28:35,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504316654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:28:35,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:28:35,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:28:35,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498397487] [2024-11-09 19:28:35,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:28:35,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:28:35,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:28:35,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:28:35,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:28:35,926 INFO L87 Difference]: Start difference. First operand 114309 states and 226906 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:40,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:28:40,263 INFO L93 Difference]: Finished difference Result 227864 states and 452373 transitions. [2024-11-09 19:28:40,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:28:40,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 541 [2024-11-09 19:28:40,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:28:40,431 INFO L225 Difference]: With dead ends: 227864 [2024-11-09 19:28:40,431 INFO L226 Difference]: Without dead ends: 114309 [2024-11-09 19:28:40,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 540 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:28:40,483 INFO L432 NwaCegarLoop]: 1977 mSDtfsCounter, 1364 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3442 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 1987 SdHoareTripleChecker+Invalid, 3986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 3442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:28:40,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 1987 Invalid, 3986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 3442 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 19:28:40,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114309 states. [2024-11-09 19:28:41,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114309 to 112053. [2024-11-09 19:28:41,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112053 states, 112052 states have (on average 1.9556723664013136) internal successors, (219137), 112052 states have internal predecessors, (219137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:42,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112053 states to 112053 states and 219137 transitions. [2024-11-09 19:28:42,132 INFO L78 Accepts]: Start accepts. Automaton has 112053 states and 219137 transitions. Word has length 541 [2024-11-09 19:28:42,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:28:42,133 INFO L471 AbstractCegarLoop]: Abstraction has 112053 states and 219137 transitions. [2024-11-09 19:28:42,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:42,133 INFO L276 IsEmpty]: Start isEmpty. Operand 112053 states and 219137 transitions. [2024-11-09 19:28:42,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2024-11-09 19:28:42,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:28:42,150 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:28:42,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:28:42,351 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,SelfDestructingSolverStorable12 [2024-11-09 19:28:42,351 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:28:42,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:28:42,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1543122333, now seen corresponding path program 1 times [2024-11-09 19:28:42,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:28:42,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737602939] [2024-11-09 19:28:42,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:28:42,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:28:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:28:42,633 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-09 19:28:42,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:28:42,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737602939] [2024-11-09 19:28:42,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737602939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:28:42,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:28:42,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:28:42,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275147182] [2024-11-09 19:28:42,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:28:42,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:28:42,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:28:42,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:28:42,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:42,635 INFO L87 Difference]: Start difference. First operand 112053 states and 219137 transitions. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:48,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:28:48,130 INFO L93 Difference]: Finished difference Result 263208 states and 515055 transitions. [2024-11-09 19:28:48,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:28:48,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 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 634 [2024-11-09 19:28:48,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:28:48,349 INFO L225 Difference]: With dead ends: 263208 [2024-11-09 19:28:48,349 INFO L226 Difference]: Without dead ends: 151909 [2024-11-09 19:28:48,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:48,410 INFO L432 NwaCegarLoop]: 1916 mSDtfsCounter, 1123 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3644 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 4133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 3644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:28:48,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 1924 Invalid, 4133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 3644 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-09 19:28:48,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151909 states. [2024-11-09 19:28:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151909 to 142885. [2024-11-09 19:28:50,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142885 states, 142884 states have (on average 1.9494974944710395) internal successors, (278552), 142884 states have internal predecessors, (278552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142885 states to 142885 states and 278552 transitions. [2024-11-09 19:28:50,494 INFO L78 Accepts]: Start accepts. Automaton has 142885 states and 278552 transitions. Word has length 634 [2024-11-09 19:28:50,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:28:50,495 INFO L471 AbstractCegarLoop]: Abstraction has 142885 states and 278552 transitions. [2024-11-09 19:28:50,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:28:50,495 INFO L276 IsEmpty]: Start isEmpty. Operand 142885 states and 278552 transitions. [2024-11-09 19:28:50,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2024-11-09 19:28:50,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:28:50,531 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:28:50,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:28:50,531 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:28:50,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:28:50,531 INFO L85 PathProgramCache]: Analyzing trace with hash 360558508, now seen corresponding path program 1 times [2024-11-09 19:28:50,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:28:50,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520060254] [2024-11-09 19:28:50,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:28:50,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:28:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:28:52,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 633 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2024-11-09 19:28:52,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:28:52,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520060254] [2024-11-09 19:28:52,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520060254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:28:52,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:28:52,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:28:52,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861392820] [2024-11-09 19:28:52,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:28:52,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:28:52,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:28:52,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:28:52,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:28:52,233 INFO L87 Difference]: Start difference. First operand 142885 states and 278552 transitions. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)