./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.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/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.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 708f088db085ec098a8544d76f8abbece9dbe61a183e0bc1703749c9af891b6b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:31:30,110 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:31:30,191 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:31:30,197 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:31:30,198 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:31:30,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:31:30,232 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:31:30,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:31:30,234 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:31:30,236 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:31:30,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:31:30,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:31:30,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:31:30,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:31:30,240 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:31:30,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:31:30,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:31:30,241 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:31:30,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:31:30,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:31:30,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:31:30,246 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:31:30,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:31:30,247 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:31:30,247 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:31:30,247 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:31:30,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:31:30,248 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:31:30,248 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:31:30,248 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:31:30,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:31:30,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:31:30,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:31:30,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:31:30,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:31:30,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:31:30,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:31:30,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:31:30,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:31:30,252 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:31:30,253 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:31:30,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:31:30,253 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 708f088db085ec098a8544d76f8abbece9dbe61a183e0bc1703749c9af891b6b [2024-11-09 23:31:30,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:31:30,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:31:30,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:31:30,577 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:31:30,577 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:31:30,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2024-11-09 23:31:32,019 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:31:32,285 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:31:32,287 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2024-11-09 23:31:32,303 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e55ffd2f/d1a7539c8237472c9e7485150e92327f/FLAGc9221d4bd [2024-11-09 23:31:32,321 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e55ffd2f/d1a7539c8237472c9e7485150e92327f [2024-11-09 23:31:32,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:31:32,325 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:31:32,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:31:32,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:31:32,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:31:32,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc276c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32, skipping insertion in model container [2024-11-09 23:31:32,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,375 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:31:32,732 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/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c[12764,12777] [2024-11-09 23:31:32,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:31:32,755 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:31:32,823 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/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c[12764,12777] [2024-11-09 23:31:32,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:31:32,849 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:31:32,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32 WrapperNode [2024-11-09 23:31:32,850 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:31:32,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:31:32,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:31:32,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:31:32,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,908 INFO L138 Inliner]: procedures = 21, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 451 [2024-11-09 23:31:32,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:31:32,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:31:32,909 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:31:32,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:31:32,924 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,928 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,946 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 23:31:32,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,947 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,957 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,962 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,966 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:31:32,971 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:31:32,971 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:31:32,971 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:31:32,972 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32" (1/1) ... [2024-11-09 23:31:32,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:31:32,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:31:33,023 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 23:31:33,026 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 23:31:33,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:31:33,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:31:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:31:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:31:33,209 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:31:33,213 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:31:33,787 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-09 23:31:33,787 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:31:33,809 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:31:33,809 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:31:33,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:31:33 BoogieIcfgContainer [2024-11-09 23:31:33,809 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:31:33,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:31:33,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:31:33,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:31:33,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:31:32" (1/3) ... [2024-11-09 23:31:33,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4905dc8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:31:33, skipping insertion in model container [2024-11-09 23:31:33,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:31:32" (2/3) ... [2024-11-09 23:31:33,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4905dc8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:31:33, skipping insertion in model container [2024-11-09 23:31:33,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:31:33" (3/3) ... [2024-11-09 23:31:33,820 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2024-11-09 23:31:33,836 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:31:33,836 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:31:33,919 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:31:33,927 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;@b55db55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:31:33,928 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:31:33,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 123 states have (on average 1.7479674796747968) internal successors, (215), 124 states have internal predecessors, (215), 0 states have call successors, (0), 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 23:31:33,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 23:31:33,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:33,947 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] [2024-11-09 23:31:33,948 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:33,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:33,955 INFO L85 PathProgramCache]: Analyzing trace with hash 11548482, now seen corresponding path program 1 times [2024-11-09 23:31:33,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:33,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216225856] [2024-11-09 23:31:33,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:33,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:34,342 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 23:31:34,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:34,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216225856] [2024-11-09 23:31:34,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216225856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:34,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:34,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:31:34,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999757933] [2024-11-09 23:31:34,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:34,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:31:34,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:34,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:31:34,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:31:34,382 INFO L87 Difference]: Start difference. First operand has 125 states, 123 states have (on average 1.7479674796747968) internal successors, (215), 124 states have internal predecessors, (215), 0 states have call successors, (0), 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 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 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 23:31:34,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:34,410 INFO L93 Difference]: Finished difference Result 193 states and 327 transitions. [2024-11-09 23:31:34,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:31:34,413 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2024-11-09 23:31:34,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:34,425 INFO L225 Difference]: With dead ends: 193 [2024-11-09 23:31:34,426 INFO L226 Difference]: Without dead ends: 120 [2024-11-09 23:31:34,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:31:34,431 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:34,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:31:34,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-09 23:31:34,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-09 23:31:34,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.7394957983193278) internal successors, (207), 119 states have internal predecessors, (207), 0 states have call successors, (0), 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 23:31:34,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 207 transitions. [2024-11-09 23:31:34,486 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 207 transitions. Word has length 39 [2024-11-09 23:31:34,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:34,487 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 207 transitions. [2024-11-09 23:31:34,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 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 23:31:34,491 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 207 transitions. [2024-11-09 23:31:34,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 23:31:34,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:34,493 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] [2024-11-09 23:31:34,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:31:34,493 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:34,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:34,497 INFO L85 PathProgramCache]: Analyzing trace with hash -2026507807, now seen corresponding path program 1 times [2024-11-09 23:31:34,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:34,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994431947] [2024-11-09 23:31:34,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:34,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:34,840 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 23:31:34,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:34,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994431947] [2024-11-09 23:31:34,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994431947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:34,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:34,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:31:34,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648325395] [2024-11-09 23:31:34,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:34,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:31:34,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:34,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:31:34,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:31:34,846 INFO L87 Difference]: Start difference. First operand 120 states and 207 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 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 23:31:34,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:34,984 INFO L93 Difference]: Finished difference Result 250 states and 421 transitions. [2024-11-09 23:31:34,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:31:34,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2024-11-09 23:31:34,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:34,990 INFO L225 Difference]: With dead ends: 250 [2024-11-09 23:31:34,990 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 23:31:34,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:31:34,992 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 104 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:34,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 779 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:31:34,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 23:31:35,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 120. [2024-11-09 23:31:35,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 119 states have internal predecessors, (180), 0 states have call successors, (0), 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 23:31:35,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 180 transitions. [2024-11-09 23:31:35,005 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 180 transitions. Word has length 39 [2024-11-09 23:31:35,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:35,006 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 180 transitions. [2024-11-09 23:31:35,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 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 23:31:35,006 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 180 transitions. [2024-11-09 23:31:35,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 23:31:35,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:35,008 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:31:35,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:31:35,008 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:35,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:35,013 INFO L85 PathProgramCache]: Analyzing trace with hash 2058974343, now seen corresponding path program 1 times [2024-11-09 23:31:35,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:35,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607870143] [2024-11-09 23:31:35,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:35,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:35,171 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 23:31:35,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:35,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607870143] [2024-11-09 23:31:35,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607870143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:35,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:35,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:31:35,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696282498] [2024-11-09 23:31:35,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:35,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:31:35,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:35,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:31:35,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:31:35,176 INFO L87 Difference]: Start difference. First operand 120 states and 180 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 23:31:35,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:35,239 INFO L93 Difference]: Finished difference Result 237 states and 373 transitions. [2024-11-09 23:31:35,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:31:35,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-09 23:31:35,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:35,242 INFO L225 Difference]: With dead ends: 237 [2024-11-09 23:31:35,242 INFO L226 Difference]: Without dead ends: 174 [2024-11-09 23:31:35,242 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 23:31:35,243 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 79 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:35,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 322 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:31:35,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-09 23:31:35,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 171. [2024-11-09 23:31:35,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.535294117647059) internal successors, (261), 170 states have internal predecessors, (261), 0 states have call successors, (0), 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 23:31:35,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 261 transitions. [2024-11-09 23:31:35,266 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 261 transitions. Word has length 65 [2024-11-09 23:31:35,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:35,268 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 261 transitions. [2024-11-09 23:31:35,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 23:31:35,269 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 261 transitions. [2024-11-09 23:31:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 23:31:35,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:35,271 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:31:35,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:31:35,271 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:35,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:35,272 INFO L85 PathProgramCache]: Analyzing trace with hash -343250364, now seen corresponding path program 1 times [2024-11-09 23:31:35,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:35,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520226481] [2024-11-09 23:31:35,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:35,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:35,415 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 23:31:35,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:35,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520226481] [2024-11-09 23:31:35,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520226481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:35,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:35,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:31:35,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525326830] [2024-11-09 23:31:35,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:35,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:31:35,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:35,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:31:35,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:31:35,421 INFO L87 Difference]: Start difference. First operand 171 states and 261 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 23:31:35,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:35,447 INFO L93 Difference]: Finished difference Result 385 states and 607 transitions. [2024-11-09 23:31:35,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:31:35,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-09 23:31:35,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:35,451 INFO L225 Difference]: With dead ends: 385 [2024-11-09 23:31:35,452 INFO L226 Difference]: Without dead ends: 271 [2024-11-09 23:31:35,453 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 23:31:35,454 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 81 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:35,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 386 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:31:35,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-09 23:31:35,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 268. [2024-11-09 23:31:35,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 267 states have (on average 1.5617977528089888) internal successors, (417), 267 states have internal predecessors, (417), 0 states have call successors, (0), 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 23:31:35,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 417 transitions. [2024-11-09 23:31:35,469 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 417 transitions. Word has length 67 [2024-11-09 23:31:35,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:35,470 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 417 transitions. [2024-11-09 23:31:35,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 23:31:35,470 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 417 transitions. [2024-11-09 23:31:35,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 23:31:35,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:35,473 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:31:35,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:31:35,473 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:35,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:35,474 INFO L85 PathProgramCache]: Analyzing trace with hash 983982190, now seen corresponding path program 1 times [2024-11-09 23:31:35,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:35,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929492358] [2024-11-09 23:31:35,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:35,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:35,595 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 23:31:35,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:35,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929492358] [2024-11-09 23:31:35,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929492358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:35,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:35,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:31:35,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715635766] [2024-11-09 23:31:35,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:35,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:31:35,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:35,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:31:35,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:31:35,599 INFO L87 Difference]: Start difference. First operand 268 states and 417 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 23:31:35,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:35,631 INFO L93 Difference]: Finished difference Result 492 states and 778 transitions. [2024-11-09 23:31:35,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:31:35,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-09 23:31:35,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:35,636 INFO L225 Difference]: With dead ends: 492 [2024-11-09 23:31:35,636 INFO L226 Difference]: Without dead ends: 378 [2024-11-09 23:31:35,636 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 23:31:35,638 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 82 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:35,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 400 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:31:35,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-09 23:31:35,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 375. [2024-11-09 23:31:35,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 374 states have (on average 1.5668449197860963) internal successors, (586), 374 states have internal predecessors, (586), 0 states have call successors, (0), 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 23:31:35,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 586 transitions. [2024-11-09 23:31:35,669 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 586 transitions. Word has length 69 [2024-11-09 23:31:35,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:35,669 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 586 transitions. [2024-11-09 23:31:35,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 23:31:35,670 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 586 transitions. [2024-11-09 23:31:35,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 23:31:35,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:35,672 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:31:35,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:31:35,672 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:35,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:35,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1482268801, now seen corresponding path program 1 times [2024-11-09 23:31:35,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:35,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093272568] [2024-11-09 23:31:35,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:35,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:35,807 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 23:31:35,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:35,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093272568] [2024-11-09 23:31:35,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093272568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:35,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:35,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:31:35,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775315386] [2024-11-09 23:31:35,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:35,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:31:35,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:35,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:31:35,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:31:35,811 INFO L87 Difference]: Start difference. First operand 375 states and 586 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 23:31:35,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:35,846 INFO L93 Difference]: Finished difference Result 933 states and 1476 transitions. [2024-11-09 23:31:35,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:31:35,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-09 23:31:35,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:35,852 INFO L225 Difference]: With dead ends: 933 [2024-11-09 23:31:35,854 INFO L226 Difference]: Without dead ends: 633 [2024-11-09 23:31:35,855 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 23:31:35,856 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 75 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:35,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 329 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:31:35,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-09 23:31:35,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 630. [2024-11-09 23:31:35,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 629 states have (on average 1.5643879173290938) internal successors, (984), 629 states have internal predecessors, (984), 0 states have call successors, (0), 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 23:31:35,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 984 transitions. [2024-11-09 23:31:35,886 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 984 transitions. Word has length 69 [2024-11-09 23:31:35,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:35,887 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 984 transitions. [2024-11-09 23:31:35,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 23:31:35,888 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 984 transitions. [2024-11-09 23:31:35,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 23:31:35,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:35,890 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:31:35,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:31:35,890 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:35,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:35,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1278421186, now seen corresponding path program 1 times [2024-11-09 23:31:35,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:35,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4441483] [2024-11-09 23:31:35,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:35,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:36,098 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 23:31:36,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:36,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4441483] [2024-11-09 23:31:36,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4441483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:36,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:36,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:31:36,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010487745] [2024-11-09 23:31:36,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:36,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:31:36,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:36,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:31:36,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:31:36,103 INFO L87 Difference]: Start difference. First operand 630 states and 984 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 23:31:36,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:36,303 INFO L93 Difference]: Finished difference Result 2801 states and 4509 transitions. [2024-11-09 23:31:36,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:31:36,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-09 23:31:36,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:36,314 INFO L225 Difference]: With dead ends: 2801 [2024-11-09 23:31:36,315 INFO L226 Difference]: Without dead ends: 2246 [2024-11-09 23:31:36,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:31:36,318 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 692 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:36,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 1074 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:31:36,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2024-11-09 23:31:36,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 1113. [2024-11-09 23:31:36,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 1112 states have (on average 1.579136690647482) internal successors, (1756), 1112 states have internal predecessors, (1756), 0 states have call successors, (0), 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 23:31:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1756 transitions. [2024-11-09 23:31:36,365 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1756 transitions. Word has length 71 [2024-11-09 23:31:36,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:36,366 INFO L471 AbstractCegarLoop]: Abstraction has 1113 states and 1756 transitions. [2024-11-09 23:31:36,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 23:31:36,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1756 transitions. [2024-11-09 23:31:36,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 23:31:36,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:36,368 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:31:36,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:31:36,368 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:36,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:36,369 INFO L85 PathProgramCache]: Analyzing trace with hash 686047278, now seen corresponding path program 1 times [2024-11-09 23:31:36,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:36,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754530397] [2024-11-09 23:31:36,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:36,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:36,483 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 23:31:36,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:36,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754530397] [2024-11-09 23:31:36,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754530397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:36,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:36,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:31:36,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657852375] [2024-11-09 23:31:36,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:36,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:31:36,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:36,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:31:36,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:31:36,493 INFO L87 Difference]: Start difference. First operand 1113 states and 1756 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 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 23:31:36,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:36,587 INFO L93 Difference]: Finished difference Result 3277 states and 5264 transitions. [2024-11-09 23:31:36,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:31:36,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-09 23:31:36,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:36,597 INFO L225 Difference]: With dead ends: 3277 [2024-11-09 23:31:36,597 INFO L226 Difference]: Without dead ends: 2242 [2024-11-09 23:31:36,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 23:31:36,601 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 298 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:36,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 587 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:31:36,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2024-11-09 23:31:36,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 1665. [2024-11-09 23:31:36,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1664 states have (on average 1.5865384615384615) internal successors, (2640), 1664 states have internal predecessors, (2640), 0 states have call successors, (0), 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 23:31:36,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2640 transitions. [2024-11-09 23:31:36,659 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2640 transitions. Word has length 72 [2024-11-09 23:31:36,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:36,660 INFO L471 AbstractCegarLoop]: Abstraction has 1665 states and 2640 transitions. [2024-11-09 23:31:36,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 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 23:31:36,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2640 transitions. [2024-11-09 23:31:36,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 23:31:36,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:36,663 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:31:36,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:31:36,663 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:36,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:36,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1343067008, now seen corresponding path program 1 times [2024-11-09 23:31:36,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:36,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807479427] [2024-11-09 23:31:36,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:36,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:36,750 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 23:31:36,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:36,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807479427] [2024-11-09 23:31:36,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807479427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:36,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:36,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:31:36,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168182161] [2024-11-09 23:31:36,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:36,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:31:36,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:36,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:31:36,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:31:36,753 INFO L87 Difference]: Start difference. First operand 1665 states and 2640 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 23:31:36,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:36,803 INFO L93 Difference]: Finished difference Result 3279 states and 5218 transitions. [2024-11-09 23:31:36,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:31:36,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-09 23:31:36,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:36,816 INFO L225 Difference]: With dead ends: 3279 [2024-11-09 23:31:36,816 INFO L226 Difference]: Without dead ends: 2385 [2024-11-09 23:31:36,819 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 23:31:36,819 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 76 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:36,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 393 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:31:36,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2024-11-09 23:31:36,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2382. [2024-11-09 23:31:36,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2381 states have (on average 1.5720285594288115) internal successors, (3743), 2381 states have internal predecessors, (3743), 0 states have call successors, (0), 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 23:31:36,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3743 transitions. [2024-11-09 23:31:36,889 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3743 transitions. Word has length 72 [2024-11-09 23:31:36,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:36,889 INFO L471 AbstractCegarLoop]: Abstraction has 2382 states and 3743 transitions. [2024-11-09 23:31:36,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 23:31:36,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3743 transitions. [2024-11-09 23:31:36,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 23:31:36,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:36,892 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:31:36,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:31:36,893 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:36,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:36,893 INFO L85 PathProgramCache]: Analyzing trace with hash -222664992, now seen corresponding path program 1 times [2024-11-09 23:31:36,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:36,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788060920] [2024-11-09 23:31:36,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:36,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:36,985 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 23:31:36,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:36,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788060920] [2024-11-09 23:31:36,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788060920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:36,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:36,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:31:36,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663823832] [2024-11-09 23:31:36,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:36,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:31:36,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:36,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:31:36,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:31:36,989 INFO L87 Difference]: Start difference. First operand 2382 states and 3743 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 23:31:37,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:37,049 INFO L93 Difference]: Finished difference Result 5350 states and 8493 transitions. [2024-11-09 23:31:37,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:31:37,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-09 23:31:37,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:37,064 INFO L225 Difference]: With dead ends: 5350 [2024-11-09 23:31:37,065 INFO L226 Difference]: Without dead ends: 3649 [2024-11-09 23:31:37,069 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 23:31:37,071 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 88 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:37,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 412 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:31:37,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3649 states. [2024-11-09 23:31:37,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3649 to 3646. [2024-11-09 23:31:37,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3645 states have (on average 1.564334705075446) internal successors, (5702), 3645 states have internal predecessors, (5702), 0 states have call successors, (0), 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 23:31:37,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 5702 transitions. [2024-11-09 23:31:37,168 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 5702 transitions. Word has length 72 [2024-11-09 23:31:37,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:37,168 INFO L471 AbstractCegarLoop]: Abstraction has 3646 states and 5702 transitions. [2024-11-09 23:31:37,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 23:31:37,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 5702 transitions. [2024-11-09 23:31:37,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 23:31:37,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:37,170 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:31:37,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:31:37,170 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:37,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:37,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1397769216, now seen corresponding path program 1 times [2024-11-09 23:31:37,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:37,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056110292] [2024-11-09 23:31:37,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:37,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:37,276 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 23:31:37,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:37,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056110292] [2024-11-09 23:31:37,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056110292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:37,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:37,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:31:37,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145661907] [2024-11-09 23:31:37,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:37,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:31:37,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:37,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:31:37,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:31:37,278 INFO L87 Difference]: Start difference. First operand 3646 states and 5702 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 23:31:37,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:37,468 INFO L93 Difference]: Finished difference Result 11736 states and 18436 transitions. [2024-11-09 23:31:37,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:31:37,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-09 23:31:37,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:37,498 INFO L225 Difference]: With dead ends: 11736 [2024-11-09 23:31:37,498 INFO L226 Difference]: Without dead ends: 8162 [2024-11-09 23:31:37,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 23:31:37,505 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 296 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:37,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 572 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:31:37,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2024-11-09 23:31:37,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 5874. [2024-11-09 23:31:37,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5874 states, 5873 states have (on average 1.5542312276519665) internal successors, (9128), 5873 states have internal predecessors, (9128), 0 states have call successors, (0), 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 23:31:37,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5874 states to 5874 states and 9128 transitions. [2024-11-09 23:31:37,675 INFO L78 Accepts]: Start accepts. Automaton has 5874 states and 9128 transitions. Word has length 73 [2024-11-09 23:31:37,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:37,675 INFO L471 AbstractCegarLoop]: Abstraction has 5874 states and 9128 transitions. [2024-11-09 23:31:37,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 23:31:37,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5874 states and 9128 transitions. [2024-11-09 23:31:37,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 23:31:37,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:37,677 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:31:37,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:31:37,678 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:37,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:37,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1929054512, now seen corresponding path program 1 times [2024-11-09 23:31:37,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:37,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594251161] [2024-11-09 23:31:37,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:37,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:37,829 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 23:31:37,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:37,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594251161] [2024-11-09 23:31:37,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594251161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:37,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:37,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:31:37,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072567995] [2024-11-09 23:31:37,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:37,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:31:37,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:37,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:31:37,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:31:37,832 INFO L87 Difference]: Start difference. First operand 5874 states and 9128 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 23:31:38,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:38,069 INFO L93 Difference]: Finished difference Result 18564 states and 28948 transitions. [2024-11-09 23:31:38,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:31:38,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-09 23:31:38,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:38,114 INFO L225 Difference]: With dead ends: 18564 [2024-11-09 23:31:38,115 INFO L226 Difference]: Without dead ends: 12762 [2024-11-09 23:31:38,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 23:31:38,128 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 294 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:38,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 573 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:31:38,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12762 states. [2024-11-09 23:31:38,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12762 to 9274. [2024-11-09 23:31:38,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9274 states, 9273 states have (on average 1.5436212660411948) internal successors, (14314), 9273 states have internal predecessors, (14314), 0 states have call successors, (0), 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 23:31:38,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9274 states to 9274 states and 14314 transitions. [2024-11-09 23:31:38,457 INFO L78 Accepts]: Start accepts. Automaton has 9274 states and 14314 transitions. Word has length 74 [2024-11-09 23:31:38,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:38,458 INFO L471 AbstractCegarLoop]: Abstraction has 9274 states and 14314 transitions. [2024-11-09 23:31:38,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 23:31:38,458 INFO L276 IsEmpty]: Start isEmpty. Operand 9274 states and 14314 transitions. [2024-11-09 23:31:38,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 23:31:38,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:38,459 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:31:38,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:31:38,460 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:38,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:38,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1206433230, now seen corresponding path program 1 times [2024-11-09 23:31:38,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:38,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460918083] [2024-11-09 23:31:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:38,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:38,741 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 23:31:38,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:38,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460918083] [2024-11-09 23:31:38,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460918083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:38,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:38,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:31:38,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525627963] [2024-11-09 23:31:38,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:38,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:31:38,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:38,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:31:38,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:31:38,744 INFO L87 Difference]: Start difference. First operand 9274 states and 14314 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 23:31:38,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:38,994 INFO L93 Difference]: Finished difference Result 18479 states and 28536 transitions. [2024-11-09 23:31:38,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:31:38,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-09 23:31:38,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:39,019 INFO L225 Difference]: With dead ends: 18479 [2024-11-09 23:31:39,019 INFO L226 Difference]: Without dead ends: 9277 [2024-11-09 23:31:39,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:31:39,035 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 223 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:39,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 475 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:31:39,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9277 states. [2024-11-09 23:31:39,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9277 to 9274. [2024-11-09 23:31:39,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9274 states, 9273 states have (on average 1.5301412703547934) internal successors, (14189), 9273 states have internal predecessors, (14189), 0 states have call successors, (0), 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 23:31:39,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9274 states to 9274 states and 14189 transitions. [2024-11-09 23:31:39,297 INFO L78 Accepts]: Start accepts. Automaton has 9274 states and 14189 transitions. Word has length 76 [2024-11-09 23:31:39,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:39,297 INFO L471 AbstractCegarLoop]: Abstraction has 9274 states and 14189 transitions. [2024-11-09 23:31:39,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 23:31:39,298 INFO L276 IsEmpty]: Start isEmpty. Operand 9274 states and 14189 transitions. [2024-11-09 23:31:39,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 23:31:39,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:39,299 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:31:39,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:31:39,300 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:39,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:39,300 INFO L85 PathProgramCache]: Analyzing trace with hash 211556905, now seen corresponding path program 1 times [2024-11-09 23:31:39,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:39,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260601009] [2024-11-09 23:31:39,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:39,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:39,500 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 23:31:39,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:39,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260601009] [2024-11-09 23:31:39,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260601009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:39,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:39,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:31:39,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433220430] [2024-11-09 23:31:39,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:39,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:31:39,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:39,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:31:39,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:31:39,503 INFO L87 Difference]: Start difference. First operand 9274 states and 14189 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 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 23:31:39,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:39,801 INFO L93 Difference]: Finished difference Result 26557 states and 40790 transitions. [2024-11-09 23:31:39,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:31:39,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-09 23:31:39,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:39,844 INFO L225 Difference]: With dead ends: 26557 [2024-11-09 23:31:39,844 INFO L226 Difference]: Without dead ends: 17355 [2024-11-09 23:31:39,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:31:39,859 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 211 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:39,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 480 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:31:39,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17355 states. [2024-11-09 23:31:40,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17355 to 17352. [2024-11-09 23:31:40,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17352 states, 17351 states have (on average 1.5159933145063684) internal successors, (26304), 17351 states have internal predecessors, (26304), 0 states have call successors, (0), 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 23:31:40,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17352 states to 17352 states and 26304 transitions. [2024-11-09 23:31:40,285 INFO L78 Accepts]: Start accepts. Automaton has 17352 states and 26304 transitions. Word has length 81 [2024-11-09 23:31:40,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:40,286 INFO L471 AbstractCegarLoop]: Abstraction has 17352 states and 26304 transitions. [2024-11-09 23:31:40,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 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 23:31:40,286 INFO L276 IsEmpty]: Start isEmpty. Operand 17352 states and 26304 transitions. [2024-11-09 23:31:40,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 23:31:40,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:40,287 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:31:40,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:31:40,287 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:40,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:40,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1871188492, now seen corresponding path program 1 times [2024-11-09 23:31:40,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:40,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502593960] [2024-11-09 23:31:40,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:40,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:40,651 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 23:31:40,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:40,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502593960] [2024-11-09 23:31:40,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502593960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:40,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:40,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:31:40,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142905766] [2024-11-09 23:31:40,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:40,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:31:40,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:40,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:31:40,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:31:40,654 INFO L87 Difference]: Start difference. First operand 17352 states and 26304 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 23:31:40,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:40,895 INFO L93 Difference]: Finished difference Result 18441 states and 27754 transitions. [2024-11-09 23:31:40,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:31:40,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-09 23:31:40,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:40,944 INFO L225 Difference]: With dead ends: 18441 [2024-11-09 23:31:40,944 INFO L226 Difference]: Without dead ends: 18438 [2024-11-09 23:31:40,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:31:40,956 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:40,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 694 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:31:40,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18438 states. [2024-11-09 23:31:41,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18438 to 18438. [2024-11-09 23:31:41,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18438 states, 18437 states have (on average 1.4851114606497804) internal successors, (27381), 18437 states have internal predecessors, (27381), 0 states have call successors, (0), 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 23:31:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18438 states to 18438 states and 27381 transitions. [2024-11-09 23:31:41,442 INFO L78 Accepts]: Start accepts. Automaton has 18438 states and 27381 transitions. Word has length 83 [2024-11-09 23:31:41,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:41,442 INFO L471 AbstractCegarLoop]: Abstraction has 18438 states and 27381 transitions. [2024-11-09 23:31:41,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 23:31:41,442 INFO L276 IsEmpty]: Start isEmpty. Operand 18438 states and 27381 transitions. [2024-11-09 23:31:41,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 23:31:41,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:41,445 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:31:41,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:31:41,445 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:41,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:41,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1093555914, now seen corresponding path program 1 times [2024-11-09 23:31:41,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:41,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296368816] [2024-11-09 23:31:41,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:41,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:41,548 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 23:31:41,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:41,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296368816] [2024-11-09 23:31:41,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296368816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:41,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:41,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:31:41,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77726808] [2024-11-09 23:31:41,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:41,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:31:41,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:41,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:31:41,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:31:41,550 INFO L87 Difference]: Start difference. First operand 18438 states and 27381 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 23:31:42,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:42,068 INFO L93 Difference]: Finished difference Result 55054 states and 81673 transitions. [2024-11-09 23:31:42,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:31:42,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 109 [2024-11-09 23:31:42,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:42,156 INFO L225 Difference]: With dead ends: 55054 [2024-11-09 23:31:42,157 INFO L226 Difference]: Without dead ends: 36678 [2024-11-09 23:31:42,183 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 23:31:42,184 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 97 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:42,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 397 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:31:42,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36678 states. [2024-11-09 23:31:42,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36678 to 36675. [2024-11-09 23:31:42,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36675 states, 36674 states have (on average 1.4710966897529585) internal successors, (53951), 36674 states have internal predecessors, (53951), 0 states have call successors, (0), 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 23:31:42,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36675 states to 36675 states and 53951 transitions. [2024-11-09 23:31:42,960 INFO L78 Accepts]: Start accepts. Automaton has 36675 states and 53951 transitions. Word has length 109 [2024-11-09 23:31:42,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:42,960 INFO L471 AbstractCegarLoop]: Abstraction has 36675 states and 53951 transitions. [2024-11-09 23:31:42,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 23:31:42,961 INFO L276 IsEmpty]: Start isEmpty. Operand 36675 states and 53951 transitions. [2024-11-09 23:31:42,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 23:31:42,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:42,965 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:31:42,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:31:42,965 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:42,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:42,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1919320698, now seen corresponding path program 1 times [2024-11-09 23:31:42,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:42,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946354307] [2024-11-09 23:31:42,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:42,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:43,217 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 23:31:43,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:43,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946354307] [2024-11-09 23:31:43,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946354307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:43,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:43,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:31:43,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169069608] [2024-11-09 23:31:43,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:43,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:31:43,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:43,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:31:43,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:31:43,221 INFO L87 Difference]: Start difference. First operand 36675 states and 53951 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:31:44,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:44,334 INFO L93 Difference]: Finished difference Result 109561 states and 161010 transitions. [2024-11-09 23:31:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:31:44,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-11-09 23:31:44,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:44,639 INFO L225 Difference]: With dead ends: 109561 [2024-11-09 23:31:44,639 INFO L226 Difference]: Without dead ends: 72987 [2024-11-09 23:31:44,707 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 23:31:44,708 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 111 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:44,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 412 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:31:44,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72987 states. [2024-11-09 23:31:46,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72987 to 72984. [2024-11-09 23:31:46,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72984 states, 72983 states have (on average 1.4570379403422715) internal successors, (106339), 72983 states have internal predecessors, (106339), 0 states have call successors, (0), 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 23:31:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72984 states to 72984 states and 106339 transitions. [2024-11-09 23:31:46,486 INFO L78 Accepts]: Start accepts. Automaton has 72984 states and 106339 transitions. Word has length 109 [2024-11-09 23:31:46,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:46,487 INFO L471 AbstractCegarLoop]: Abstraction has 72984 states and 106339 transitions. [2024-11-09 23:31:46,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:31:46,487 INFO L276 IsEmpty]: Start isEmpty. Operand 72984 states and 106339 transitions. [2024-11-09 23:31:46,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 23:31:46,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:46,495 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:31:46,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 23:31:46,495 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:46,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:46,496 INFO L85 PathProgramCache]: Analyzing trace with hash 809914598, now seen corresponding path program 1 times [2024-11-09 23:31:46,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:46,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919622208] [2024-11-09 23:31:46,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:46,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:31:46,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:46,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919622208] [2024-11-09 23:31:46,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919622208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:46,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:46,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:31:46,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059766415] [2024-11-09 23:31:46,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:46,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:31:46,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:46,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:31:46,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:31:46,585 INFO L87 Difference]: Start difference. First operand 72984 states and 106339 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 23:31:48,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:48,416 INFO L93 Difference]: Finished difference Result 218030 states and 317353 transitions. [2024-11-09 23:31:48,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:31:48,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-09 23:31:48,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:48,688 INFO L225 Difference]: With dead ends: 218030 [2024-11-09 23:31:48,688 INFO L226 Difference]: Without dead ends: 145251 [2024-11-09 23:31:48,746 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 23:31:48,747 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 112 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:48,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 411 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:31:48,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145251 states. [2024-11-09 23:31:51,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145251 to 145248. [2024-11-09 23:31:51,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145248 states, 145247 states have (on average 1.4428456353659629) internal successors, (209569), 145247 states have internal predecessors, (209569), 0 states have call successors, (0), 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 23:31:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145248 states to 145248 states and 209569 transitions. [2024-11-09 23:31:52,043 INFO L78 Accepts]: Start accepts. Automaton has 145248 states and 209569 transitions. Word has length 109 [2024-11-09 23:31:52,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:31:52,043 INFO L471 AbstractCegarLoop]: Abstraction has 145248 states and 209569 transitions. [2024-11-09 23:31:52,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 23:31:52,044 INFO L276 IsEmpty]: Start isEmpty. Operand 145248 states and 209569 transitions. [2024-11-09 23:31:52,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 23:31:52,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:31:52,059 INFO L215 NwaCegarLoop]: trace histogram [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 23:31:52,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 23:31:52,060 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:31:52,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:31:52,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1247924101, now seen corresponding path program 1 times [2024-11-09 23:31:52,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:31:52,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060743183] [2024-11-09 23:31:52,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:31:52,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:31:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:31:52,153 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:31:52,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:31:52,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060743183] [2024-11-09 23:31:52,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060743183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:31:52,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:31:52,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:31:52,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060237540] [2024-11-09 23:31:52,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:31:52,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:31:52,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:31:52,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:31:52,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:31:52,157 INFO L87 Difference]: Start difference. First operand 145248 states and 209569 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 23:31:56,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:31:56,090 INFO L93 Difference]: Finished difference Result 433930 states and 625450 transitions. [2024-11-09 23:31:56,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:31:56,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-09 23:31:56,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:31:56,705 INFO L225 Difference]: With dead ends: 433930 [2024-11-09 23:31:56,706 INFO L226 Difference]: Without dead ends: 289099 [2024-11-09 23:31:56,827 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 23:31:56,827 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 131 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:31:56,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 428 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:31:57,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289099 states. [2024-11-09 23:32:02,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289099 to 289096. [2024-11-09 23:32:02,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289096 states, 289095 states have (on average 1.4285753817949116) internal successors, (412994), 289095 states have internal predecessors, (412994), 0 states have call successors, (0), 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 23:32:03,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289096 states to 289096 states and 412994 transitions. [2024-11-09 23:32:03,253 INFO L78 Accepts]: Start accepts. Automaton has 289096 states and 412994 transitions. Word has length 109 [2024-11-09 23:32:03,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:32:03,253 INFO L471 AbstractCegarLoop]: Abstraction has 289096 states and 412994 transitions. [2024-11-09 23:32:03,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 23:32:03,253 INFO L276 IsEmpty]: Start isEmpty. Operand 289096 states and 412994 transitions. [2024-11-09 23:32:03,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 23:32:03,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:32:03,279 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:32:03,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 23:32:03,280 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:32:03,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:32:03,280 INFO L85 PathProgramCache]: Analyzing trace with hash -2077462172, now seen corresponding path program 1 times [2024-11-09 23:32:03,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:32:03,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363637382] [2024-11-09 23:32:03,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:32:03,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:32:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:32:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:32:03,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:32:03,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363637382] [2024-11-09 23:32:03,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363637382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:32:03,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:32:03,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:32:03,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97941303] [2024-11-09 23:32:03,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:32:03,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:32:03,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:32:03,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:32:03,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:32:03,360 INFO L87 Difference]: Start difference. First operand 289096 states and 412994 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 23:32:07,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:32:07,268 INFO L93 Difference]: Finished difference Result 434322 states and 619174 transitions. [2024-11-09 23:32:07,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:32:07,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-09 23:32:07,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:32:08,313 INFO L225 Difference]: With dead ends: 434322 [2024-11-09 23:32:08,314 INFO L226 Difference]: Without dead ends: 289459 [2024-11-09 23:32:08,440 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 23:32:08,440 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 102 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:32:08,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 462 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:32:08,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289459 states. [2024-11-09 23:32:13,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289459 to 289456. [2024-11-09 23:32:13,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289456 states, 289455 states have (on average 1.416531067005234) internal successors, (410022), 289455 states have internal predecessors, (410022), 0 states have call successors, (0), 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 23:32:14,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289456 states to 289456 states and 410022 transitions. [2024-11-09 23:32:14,960 INFO L78 Accepts]: Start accepts. Automaton has 289456 states and 410022 transitions. Word has length 109 [2024-11-09 23:32:14,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:32:14,961 INFO L471 AbstractCegarLoop]: Abstraction has 289456 states and 410022 transitions. [2024-11-09 23:32:14,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 23:32:14,961 INFO L276 IsEmpty]: Start isEmpty. Operand 289456 states and 410022 transitions. [2024-11-09 23:32:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 23:32:14,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:32:14,988 INFO L215 NwaCegarLoop]: trace histogram [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 23:32:14,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 23:32:14,989 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:32:14,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:32:14,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1706970947, now seen corresponding path program 1 times [2024-11-09 23:32:14,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:32:14,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724107957] [2024-11-09 23:32:14,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:32:14,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:32:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:32:15,092 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:32:15,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:32:15,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724107957] [2024-11-09 23:32:15,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724107957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:32:15,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:32:15,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:32:15,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220354006] [2024-11-09 23:32:15,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:32:15,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:32:15,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:32:15,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:32:15,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:32:15,096 INFO L87 Difference]: Start difference. First operand 289456 states and 410022 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 23:32:18,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:32:18,590 INFO L93 Difference]: Finished difference Result 434890 states and 614757 transitions. [2024-11-09 23:32:18,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:32:18,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-09 23:32:18,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:32:19,235 INFO L225 Difference]: With dead ends: 434890 [2024-11-09 23:32:19,235 INFO L226 Difference]: Without dead ends: 290059 [2024-11-09 23:32:19,325 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 23:32:19,326 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 116 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:32:19,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 480 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:32:19,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290059 states. [2024-11-09 23:32:24,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290059 to 290056. [2024-11-09 23:32:24,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290056 states, 290055 states have (on average 1.4043164227474099) internal successors, (407329), 290055 states have internal predecessors, (407329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)