./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 7efec3183b551b8159eccadb4807318ed392eb1a388f130f9498beabb74a52bc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 11:46:31,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 11:46:31,737 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 11:46:31,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 11:46:31,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 11:46:31,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 11:46:31,762 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 11:46:31,762 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 11:46:31,763 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 11:46:31,763 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 11:46:31,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 11:46:31,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 11:46:31,765 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 11:46:31,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 11:46:31,765 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 11:46:31,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 11:46:31,766 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 11:46:31,766 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 11:46:31,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 11:46:31,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 11:46:31,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 11:46:31,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 11:46:31,770 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 11:46:31,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 11:46:31,771 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 11:46:31,771 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 11:46:31,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 11:46:31,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 11:46:31,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 11:46:31,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:46:31,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 11:46:31,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 11:46:31,777 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 11:46:31,777 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 11:46:31,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 11:46:31,778 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 11:46:31,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 11:46:31,778 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 11:46:31,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 11:46:31,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7efec3183b551b8159eccadb4807318ed392eb1a388f130f9498beabb74a52bc [2024-11-16 11:46:32,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 11:46:32,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 11:46:32,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 11:46:32,085 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 11:46:32,085 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 11:46:32,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c [2024-11-16 11:46:33,597 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 11:46:33,879 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 11:46:33,879 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c [2024-11-16 11:46:33,892 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2750be20c/24e1bde9bbde4b14b63e62bf9235ab6f/FLAGfc4cfe4bc [2024-11-16 11:46:34,181 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2750be20c/24e1bde9bbde4b14b63e62bf9235ab6f [2024-11-16 11:46:34,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 11:46:34,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 11:46:34,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 11:46:34,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 11:46:34,195 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 11:46:34,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:34,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7404d254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34, skipping insertion in model container [2024-11-16 11:46:34,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:34,243 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 11:46:34,427 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/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c[1249,1262] [2024-11-16 11:46:34,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:46:34,608 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 11:46:34,618 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/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c[1249,1262] [2024-11-16 11:46:34,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:46:34,745 INFO L204 MainTranslator]: Completed translation [2024-11-16 11:46:34,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34 WrapperNode [2024-11-16 11:46:34,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 11:46:34,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 11:46:34,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 11:46:34,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 11:46:34,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:34,789 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:34,951 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1299 [2024-11-16 11:46:34,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 11:46:34,952 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 11:46:34,953 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 11:46:34,953 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 11:46:34,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:34,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:35,003 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:35,081 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 11:46:35,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:35,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:35,141 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:35,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:35,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:35,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:35,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 11:46:35,234 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 11:46:35,234 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 11:46:35,234 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 11:46:35,235 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34" (1/1) ... [2024-11-16 11:46:35,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:46:35,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:46:35,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 11:46:35,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 11:46:35,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 11:46:35,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 11:46:35,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 11:46:35,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 11:46:35,495 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 11:46:35,497 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 11:46:37,191 INFO L? ?]: Removed 798 outVars from TransFormulas that were not future-live. [2024-11-16 11:46:37,191 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 11:46:37,273 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 11:46:37,291 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 11:46:37,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:46:37 BoogieIcfgContainer [2024-11-16 11:46:37,291 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 11:46:37,293 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 11:46:37,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 11:46:37,298 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 11:46:37,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:46:34" (1/3) ... [2024-11-16 11:46:37,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1790654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:46:37, skipping insertion in model container [2024-11-16 11:46:37,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:46:34" (2/3) ... [2024-11-16 11:46:37,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1790654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:46:37, skipping insertion in model container [2024-11-16 11:46:37,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:46:37" (3/3) ... [2024-11-16 11:46:37,303 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_sym_ex.c [2024-11-16 11:46:37,320 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 11:46:37,320 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 11:46:37,403 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 11:46:37,411 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;@15e68e15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 11:46:37,411 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 11:46:37,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 385 states, 383 states have (on average 1.4934725848563968) internal successors, (572), 384 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:37,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-16 11:46:37,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:37,428 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] [2024-11-16 11:46:37,429 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:37,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:37,435 INFO L85 PathProgramCache]: Analyzing trace with hash -408245644, now seen corresponding path program 1 times [2024-11-16 11:46:37,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:37,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609454888] [2024-11-16 11:46:37,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:37,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:38,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:38,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:38,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609454888] [2024-11-16 11:46:38,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609454888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:38,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:38,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:46:38,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33077153] [2024-11-16 11:46:38,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:38,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:46:38,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:38,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:46:38,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:46:38,064 INFO L87 Difference]: Start difference. First operand has 385 states, 383 states have (on average 1.4934725848563968) internal successors, (572), 384 states have internal predecessors, (572), 0 states have call successors, (0), 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 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:38,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:38,367 INFO L93 Difference]: Finished difference Result 721 states and 1075 transitions. [2024-11-16 11:46:38,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:46:38,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2024-11-16 11:46:38,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:38,380 INFO L225 Difference]: With dead ends: 721 [2024-11-16 11:46:38,380 INFO L226 Difference]: Without dead ends: 382 [2024-11-16 11:46:38,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:46:38,387 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 0 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:38,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1408 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:46:38,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-16 11:46:38,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2024-11-16 11:46:38,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 381 states have (on average 1.4908136482939633) internal successors, (568), 381 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:38,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 568 transitions. [2024-11-16 11:46:38,440 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 568 transitions. Word has length 38 [2024-11-16 11:46:38,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:38,440 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 568 transitions. [2024-11-16 11:46:38,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:38,441 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 568 transitions. [2024-11-16 11:46:38,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-16 11:46:38,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:38,442 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] [2024-11-16 11:46:38,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 11:46:38,443 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:38,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:38,443 INFO L85 PathProgramCache]: Analyzing trace with hash 374340840, now seen corresponding path program 1 times [2024-11-16 11:46:38,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:38,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814815165] [2024-11-16 11:46:38,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:38,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:38,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:38,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:38,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814815165] [2024-11-16 11:46:38,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814815165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:38,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:38,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:46:38,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818800537] [2024-11-16 11:46:38,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:38,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:46:38,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:38,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:46:38,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:46:38,646 INFO L87 Difference]: Start difference. First operand 382 states and 568 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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) [2024-11-16 11:46:38,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:38,876 INFO L93 Difference]: Finished difference Result 720 states and 1071 transitions. [2024-11-16 11:46:38,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:46:38,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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 [2024-11-16 11:46:38,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:38,878 INFO L225 Difference]: With dead ends: 720 [2024-11-16 11:46:38,879 INFO L226 Difference]: Without dead ends: 384 [2024-11-16 11:46:38,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:46:38,882 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 0 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:38,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1405 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:46:38,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-16 11:46:38,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-11-16 11:46:38,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 383 states have (on average 1.4882506527415145) internal successors, (570), 383 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:38,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 570 transitions. [2024-11-16 11:46:38,914 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 570 transitions. Word has length 39 [2024-11-16 11:46:38,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:38,914 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 570 transitions. [2024-11-16 11:46:38,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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) [2024-11-16 11:46:38,914 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 570 transitions. [2024-11-16 11:46:38,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 11:46:38,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:38,915 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] [2024-11-16 11:46:38,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 11:46:38,916 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:38,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:38,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1533091751, now seen corresponding path program 1 times [2024-11-16 11:46:38,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:38,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810401652] [2024-11-16 11:46:38,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:38,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:39,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:39,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:39,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810401652] [2024-11-16 11:46:39,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810401652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:39,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:39,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:46:39,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188156825] [2024-11-16 11:46:39,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:39,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:46:39,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:39,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:46:39,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:46:39,114 INFO L87 Difference]: Start difference. First operand 384 states and 570 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:39,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:39,449 INFO L93 Difference]: Finished difference Result 1029 states and 1530 transitions. [2024-11-16 11:46:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:46:39,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2024-11-16 11:46:39,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:39,452 INFO L225 Difference]: With dead ends: 1029 [2024-11-16 11:46:39,453 INFO L226 Difference]: Without dead ends: 691 [2024-11-16 11:46:39,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:39,455 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1450 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:39,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1450 Valid, 1375 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:46:39,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-16 11:46:39,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 398. [2024-11-16 11:46:39,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 397 states have (on average 1.486146095717884) internal successors, (590), 397 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:39,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 590 transitions. [2024-11-16 11:46:39,469 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 590 transitions. Word has length 40 [2024-11-16 11:46:39,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:39,469 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 590 transitions. [2024-11-16 11:46:39,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:39,470 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 590 transitions. [2024-11-16 11:46:39,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-16 11:46:39,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:39,481 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:39,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 11:46:39,482 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:39,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:39,482 INFO L85 PathProgramCache]: Analyzing trace with hash -952828417, now seen corresponding path program 1 times [2024-11-16 11:46:39,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:39,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223956196] [2024-11-16 11:46:39,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:39,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:41,246 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:41,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:41,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223956196] [2024-11-16 11:46:41,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223956196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:41,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:41,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:46:41,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012735384] [2024-11-16 11:46:41,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:41,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:46:41,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:41,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:46:41,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:46:41,251 INFO L87 Difference]: Start difference. First operand 398 states and 590 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 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) [2024-11-16 11:46:41,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:41,602 INFO L93 Difference]: Finished difference Result 1005 states and 1493 transitions. [2024-11-16 11:46:41,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:46:41,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 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) Word has length 207 [2024-11-16 11:46:41,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:41,606 INFO L225 Difference]: With dead ends: 1005 [2024-11-16 11:46:41,606 INFO L226 Difference]: Without dead ends: 667 [2024-11-16 11:46:41,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:41,608 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 1348 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:41,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 1373 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:46:41,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-16 11:46:41,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 449. [2024-11-16 11:46:41,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 448 states have (on average 1.4799107142857142) internal successors, (663), 448 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:41,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 663 transitions. [2024-11-16 11:46:41,620 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 663 transitions. Word has length 207 [2024-11-16 11:46:41,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:41,620 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 663 transitions. [2024-11-16 11:46:41,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 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) [2024-11-16 11:46:41,621 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 663 transitions. [2024-11-16 11:46:41,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-16 11:46:41,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:41,630 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:41,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 11:46:41,630 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:41,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:41,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1391910694, now seen corresponding path program 1 times [2024-11-16 11:46:41,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:41,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103288060] [2024-11-16 11:46:41,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:41,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:43,318 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:43,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:43,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103288060] [2024-11-16 11:46:43,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103288060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:43,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:43,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:46:43,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893992062] [2024-11-16 11:46:43,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:43,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:46:43,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:43,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:46:43,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:46:43,321 INFO L87 Difference]: Start difference. First operand 449 states and 663 transitions. Second operand has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:43,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:43,706 INFO L93 Difference]: Finished difference Result 1005 states and 1491 transitions. [2024-11-16 11:46:43,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:46:43,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 0 states have call successors, (0), 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 209 [2024-11-16 11:46:43,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:43,712 INFO L225 Difference]: With dead ends: 1005 [2024-11-16 11:46:43,712 INFO L226 Difference]: Without dead ends: 667 [2024-11-16 11:46:43,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:43,714 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1298 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:43,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 1372 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:46:43,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-16 11:46:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 540. [2024-11-16 11:46:43,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 539 states have (on average 1.4805194805194806) internal successors, (798), 539 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 798 transitions. [2024-11-16 11:46:43,732 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 798 transitions. Word has length 209 [2024-11-16 11:46:43,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:43,733 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 798 transitions. [2024-11-16 11:46:43,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 798 transitions. [2024-11-16 11:46:43,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-16 11:46:43,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:43,739 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:43,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 11:46:43,739 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:43,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:43,740 INFO L85 PathProgramCache]: Analyzing trace with hash 424718522, now seen corresponding path program 1 times [2024-11-16 11:46:43,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:43,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311306193] [2024-11-16 11:46:43,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:43,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:45,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:45,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:45,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311306193] [2024-11-16 11:46:45,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311306193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:45,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:45,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:46:45,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185778218] [2024-11-16 11:46:45,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:45,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:46:45,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:45,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:46:45,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:45,283 INFO L87 Difference]: Start difference. First operand 540 states and 798 transitions. Second operand has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:45,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:45,795 INFO L93 Difference]: Finished difference Result 1013 states and 1502 transitions. [2024-11-16 11:46:45,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:46:45,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 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 210 [2024-11-16 11:46:45,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:45,801 INFO L225 Difference]: With dead ends: 1013 [2024-11-16 11:46:45,801 INFO L226 Difference]: Without dead ends: 675 [2024-11-16 11:46:45,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:46:45,806 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 1317 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 2273 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:45,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 2273 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:46:45,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-16 11:46:45,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 543. [2024-11-16 11:46:45,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 542 states have (on average 1.4797047970479704) internal successors, (802), 542 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:45,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 802 transitions. [2024-11-16 11:46:45,824 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 802 transitions. Word has length 210 [2024-11-16 11:46:45,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:45,825 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 802 transitions. [2024-11-16 11:46:45,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:45,825 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 802 transitions. [2024-11-16 11:46:45,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-16 11:46:45,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:45,828 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:45,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 11:46:45,828 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:45,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:45,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1678372607, now seen corresponding path program 1 times [2024-11-16 11:46:45,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:45,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240316075] [2024-11-16 11:46:45,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:45,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:47,359 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:47,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:47,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240316075] [2024-11-16 11:46:47,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240316075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:47,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:47,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:46:47,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071739034] [2024-11-16 11:46:47,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:47,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:46:47,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:47,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:46:47,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:46:47,362 INFO L87 Difference]: Start difference. First operand 543 states and 802 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:47,727 INFO L93 Difference]: Finished difference Result 1040 states and 1540 transitions. [2024-11-16 11:46:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:46:47,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2024-11-16 11:46:47,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:47,730 INFO L225 Difference]: With dead ends: 1040 [2024-11-16 11:46:47,731 INFO L226 Difference]: Without dead ends: 669 [2024-11-16 11:46:47,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:47,733 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1312 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:47,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 1372 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:46:47,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-16 11:46:47,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 543. [2024-11-16 11:46:47,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 542 states have (on average 1.477859778597786) internal successors, (801), 542 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:47,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 801 transitions. [2024-11-16 11:46:47,746 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 801 transitions. Word has length 211 [2024-11-16 11:46:47,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:47,746 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 801 transitions. [2024-11-16 11:46:47,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:47,747 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 801 transitions. [2024-11-16 11:46:47,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-16 11:46:47,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:47,749 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:47,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 11:46:47,750 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:47,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:47,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1507742787, now seen corresponding path program 1 times [2024-11-16 11:46:47,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:47,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691036580] [2024-11-16 11:46:47,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:47,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:49,089 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:49,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:49,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691036580] [2024-11-16 11:46:49,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691036580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:49,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:49,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:46:49,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175375603] [2024-11-16 11:46:49,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:49,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:46:49,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:49,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:46:49,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:46:49,094 INFO L87 Difference]: Start difference. First operand 543 states and 801 transitions. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:49,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:49,444 INFO L93 Difference]: Finished difference Result 1007 states and 1491 transitions. [2024-11-16 11:46:49,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:46:49,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-11-16 11:46:49,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:49,448 INFO L225 Difference]: With dead ends: 1007 [2024-11-16 11:46:49,448 INFO L226 Difference]: Without dead ends: 669 [2024-11-16 11:46:49,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:49,450 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1275 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:49,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 1372 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:46:49,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-16 11:46:49,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 574. [2024-11-16 11:46:49,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 573 states have (on average 1.4764397905759161) internal successors, (846), 573 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:49,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 846 transitions. [2024-11-16 11:46:49,468 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 846 transitions. Word has length 212 [2024-11-16 11:46:49,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:49,469 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 846 transitions. [2024-11-16 11:46:49,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:49,470 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 846 transitions. [2024-11-16 11:46:49,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-16 11:46:49,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:49,472 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:49,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 11:46:49,472 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:49,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:49,473 INFO L85 PathProgramCache]: Analyzing trace with hash -72818981, now seen corresponding path program 1 times [2024-11-16 11:46:49,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:49,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336570106] [2024-11-16 11:46:49,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:49,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:50,914 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:50,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:50,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336570106] [2024-11-16 11:46:50,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336570106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:50,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:50,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:46:50,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468046575] [2024-11-16 11:46:50,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:50,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:46:50,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:50,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:46:50,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:46:50,918 INFO L87 Difference]: Start difference. First operand 574 states and 846 transitions. Second operand has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:51,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:51,329 INFO L93 Difference]: Finished difference Result 1007 states and 1490 transitions. [2024-11-16 11:46:51,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:46:51,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 0 states have call successors, (0), 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 213 [2024-11-16 11:46:51,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:51,335 INFO L225 Difference]: With dead ends: 1007 [2024-11-16 11:46:51,336 INFO L226 Difference]: Without dead ends: 669 [2024-11-16 11:46:51,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:51,338 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1240 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:51,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 1372 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:46:51,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-16 11:46:51,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 638. [2024-11-16 11:46:51,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 637 states have (on average 1.4772370486656201) internal successors, (941), 637 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:51,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 941 transitions. [2024-11-16 11:46:51,357 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 941 transitions. Word has length 213 [2024-11-16 11:46:51,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:51,358 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 941 transitions. [2024-11-16 11:46:51,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:51,359 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 941 transitions. [2024-11-16 11:46:51,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-16 11:46:51,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:51,362 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:51,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 11:46:51,363 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:51,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:51,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2081755347, now seen corresponding path program 1 times [2024-11-16 11:46:51,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:51,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761830370] [2024-11-16 11:46:51,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:51,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:52,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:52,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761830370] [2024-11-16 11:46:52,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761830370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:52,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:52,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:46:52,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113689354] [2024-11-16 11:46:52,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:52,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:46:52,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:52,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:46:52,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:52,698 INFO L87 Difference]: Start difference. First operand 638 states and 941 transitions. Second operand has 7 states, 7 states have (on average 30.571428571428573) internal successors, (214), 7 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:53,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:53,161 INFO L93 Difference]: Finished difference Result 1073 states and 1587 transitions. [2024-11-16 11:46:53,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:46:53,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.571428571428573) internal successors, (214), 7 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2024-11-16 11:46:53,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:53,165 INFO L225 Difference]: With dead ends: 1073 [2024-11-16 11:46:53,165 INFO L226 Difference]: Without dead ends: 677 [2024-11-16 11:46:53,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:46:53,166 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 1293 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:53,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 2155 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:46:53,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-11-16 11:46:53,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 640. [2024-11-16 11:46:53,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 639 states have (on average 1.4757433489827856) internal successors, (943), 639 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:53,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 943 transitions. [2024-11-16 11:46:53,180 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 943 transitions. Word has length 214 [2024-11-16 11:46:53,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:53,181 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 943 transitions. [2024-11-16 11:46:53,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.571428571428573) internal successors, (214), 7 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:53,181 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 943 transitions. [2024-11-16 11:46:53,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-16 11:46:53,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:53,184 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:53,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 11:46:53,184 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:53,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:53,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1038575824, now seen corresponding path program 1 times [2024-11-16 11:46:53,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:53,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489275041] [2024-11-16 11:46:53,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:53,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:54,405 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:54,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:54,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489275041] [2024-11-16 11:46:54,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489275041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:54,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:54,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:46:54,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035758391] [2024-11-16 11:46:54,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:54,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:46:54,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:54,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:46:54,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:54,409 INFO L87 Difference]: Start difference. First operand 640 states and 943 transitions. Second operand has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 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) [2024-11-16 11:46:54,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:54,889 INFO L93 Difference]: Finished difference Result 1111 states and 1643 transitions. [2024-11-16 11:46:54,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:46:54,889 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 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) Word has length 215 [2024-11-16 11:46:54,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:54,893 INFO L225 Difference]: With dead ends: 1111 [2024-11-16 11:46:54,893 INFO L226 Difference]: Without dead ends: 719 [2024-11-16 11:46:54,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:46:54,894 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 1409 mSDsluCounter, 1747 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:54,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 2202 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:46:54,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-11-16 11:46:54,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 642. [2024-11-16 11:46:54,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 641 states have (on average 1.4742589703588143) internal successors, (945), 641 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:54,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 945 transitions. [2024-11-16 11:46:54,906 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 945 transitions. Word has length 215 [2024-11-16 11:46:54,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:54,907 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 945 transitions. [2024-11-16 11:46:54,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 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) [2024-11-16 11:46:54,907 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 945 transitions. [2024-11-16 11:46:54,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-16 11:46:54,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:54,909 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:54,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 11:46:54,910 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:54,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:54,910 INFO L85 PathProgramCache]: Analyzing trace with hash -846019188, now seen corresponding path program 1 times [2024-11-16 11:46:54,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:54,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181148298] [2024-11-16 11:46:54,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:54,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:56,159 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:56,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:56,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181148298] [2024-11-16 11:46:56,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181148298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:56,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:56,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:46:56,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682707655] [2024-11-16 11:46:56,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:56,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:46:56,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:56,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:46:56,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:56,161 INFO L87 Difference]: Start difference. First operand 642 states and 945 transitions. Second operand has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 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) [2024-11-16 11:46:56,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:56,587 INFO L93 Difference]: Finished difference Result 1019 states and 1505 transitions. [2024-11-16 11:46:56,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:46:56,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 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) Word has length 215 [2024-11-16 11:46:56,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:56,590 INFO L225 Difference]: With dead ends: 1019 [2024-11-16 11:46:56,591 INFO L226 Difference]: Without dead ends: 681 [2024-11-16 11:46:56,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:46:56,592 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 1259 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 2037 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:56,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 2037 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:46:56,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-11-16 11:46:56,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 645. [2024-11-16 11:46:56,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 644 states have (on average 1.4736024844720497) internal successors, (949), 644 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:56,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 949 transitions. [2024-11-16 11:46:56,605 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 949 transitions. Word has length 215 [2024-11-16 11:46:56,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:56,605 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 949 transitions. [2024-11-16 11:46:56,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 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) [2024-11-16 11:46:56,605 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 949 transitions. [2024-11-16 11:46:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-16 11:46:56,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:56,608 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:56,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 11:46:56,608 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:56,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:56,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1929437193, now seen corresponding path program 1 times [2024-11-16 11:46:56,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:56,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725984068] [2024-11-16 11:46:56,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:56,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:57,878 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:57,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:57,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725984068] [2024-11-16 11:46:57,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725984068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:57,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:57,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:46:57,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210353037] [2024-11-16 11:46:57,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:57,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:46:57,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:57,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:46:57,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:46:57,881 INFO L87 Difference]: Start difference. First operand 645 states and 949 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:58,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:58,214 INFO L93 Difference]: Finished difference Result 1046 states and 1543 transitions. [2024-11-16 11:46:58,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:46:58,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 0 states have call successors, (0), 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 216 [2024-11-16 11:46:58,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:58,217 INFO L225 Difference]: With dead ends: 1046 [2024-11-16 11:46:58,218 INFO L226 Difference]: Without dead ends: 675 [2024-11-16 11:46:58,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:58,220 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1253 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:58,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 1372 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:46:58,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-16 11:46:58,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 645. [2024-11-16 11:46:58,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 644 states have (on average 1.4720496894409938) internal successors, (948), 644 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:58,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 948 transitions. [2024-11-16 11:46:58,232 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 948 transitions. Word has length 216 [2024-11-16 11:46:58,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:58,233 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 948 transitions. [2024-11-16 11:46:58,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:58,234 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 948 transitions. [2024-11-16 11:46:58,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-16 11:46:58,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:58,236 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:58,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 11:46:58,237 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:58,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:58,237 INFO L85 PathProgramCache]: Analyzing trace with hash -28641521, now seen corresponding path program 1 times [2024-11-16 11:46:58,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:58,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12139602] [2024-11-16 11:46:58,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:58,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:59,529 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:59,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:59,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12139602] [2024-11-16 11:46:59,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12139602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:59,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:59,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:46:59,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271198914] [2024-11-16 11:46:59,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:59,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:46:59,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:59,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:46:59,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:59,532 INFO L87 Difference]: Start difference. First operand 645 states and 948 transitions. Second operand has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:00,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:47:00,027 INFO L93 Difference]: Finished difference Result 1050 states and 1548 transitions. [2024-11-16 11:47:00,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:47:00,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 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 217 [2024-11-16 11:47:00,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:47:00,030 INFO L225 Difference]: With dead ends: 1050 [2024-11-16 11:47:00,030 INFO L226 Difference]: Without dead ends: 683 [2024-11-16 11:47:00,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:47:00,032 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 1272 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 2273 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:47:00,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 2273 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:47:00,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-16 11:47:00,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 647. [2024-11-16 11:47:00,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 646 states have (on average 1.4705882352941178) internal successors, (950), 646 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:00,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 950 transitions. [2024-11-16 11:47:00,045 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 950 transitions. Word has length 217 [2024-11-16 11:47:00,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:47:00,045 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 950 transitions. [2024-11-16 11:47:00,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:00,046 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 950 transitions. [2024-11-16 11:47:00,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-16 11:47:00,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:47:00,048 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:47:00,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 11:47:00,048 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:47:00,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:47:00,049 INFO L85 PathProgramCache]: Analyzing trace with hash 610124690, now seen corresponding path program 1 times [2024-11-16 11:47:00,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:47:00,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170964794] [2024-11-16 11:47:00,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:00,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:47:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:01,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:47:01,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170964794] [2024-11-16 11:47:01,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170964794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:47:01,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:47:01,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:47:01,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376316247] [2024-11-16 11:47:01,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:47:01,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:47:01,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:47:01,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:47:01,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:47:01,230 INFO L87 Difference]: Start difference. First operand 647 states and 950 transitions. Second operand has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:01,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:47:01,682 INFO L93 Difference]: Finished difference Result 1088 states and 1604 transitions. [2024-11-16 11:47:01,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:47:01,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2024-11-16 11:47:01,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:47:01,685 INFO L225 Difference]: With dead ends: 1088 [2024-11-16 11:47:01,686 INFO L226 Difference]: Without dead ends: 725 [2024-11-16 11:47:01,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:47:01,688 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 1390 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:47:01,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 2130 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:47:01,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-16 11:47:01,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 649. [2024-11-16 11:47:01,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 648 states have (on average 1.4691358024691359) internal successors, (952), 648 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:01,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 952 transitions. [2024-11-16 11:47:01,705 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 952 transitions. Word has length 218 [2024-11-16 11:47:01,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:47:01,706 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 952 transitions. [2024-11-16 11:47:01,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:01,706 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 952 transitions. [2024-11-16 11:47:01,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-16 11:47:01,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:47:01,709 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:47:01,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 11:47:01,709 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:47:01,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:47:01,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1459730570, now seen corresponding path program 1 times [2024-11-16 11:47:01,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:47:01,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249070222] [2024-11-16 11:47:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:01,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:47:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:03,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:47:03,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249070222] [2024-11-16 11:47:03,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249070222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:47:03,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:47:03,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:47:03,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403060336] [2024-11-16 11:47:03,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:47:03,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:47:03,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:47:03,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:47:03,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:47:03,088 INFO L87 Difference]: Start difference. First operand 649 states and 952 transitions. Second operand has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:03,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:47:03,527 INFO L93 Difference]: Finished difference Result 1065 states and 1570 transitions. [2024-11-16 11:47:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:47:03,528 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2024-11-16 11:47:03,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:47:03,531 INFO L225 Difference]: With dead ends: 1065 [2024-11-16 11:47:03,531 INFO L226 Difference]: Without dead ends: 727 [2024-11-16 11:47:03,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:47:03,532 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 1371 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 2272 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:47:03,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 2272 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:47:03,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-16 11:47:03,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 655. [2024-11-16 11:47:03,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 654 states have (on average 1.4678899082568808) internal successors, (960), 654 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 960 transitions. [2024-11-16 11:47:03,545 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 960 transitions. Word has length 218 [2024-11-16 11:47:03,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:47:03,545 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 960 transitions. [2024-11-16 11:47:03,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:03,545 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 960 transitions. [2024-11-16 11:47:03,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-16 11:47:03,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:47:03,548 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:47:03,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 11:47:03,548 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:47:03,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:47:03,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1219892600, now seen corresponding path program 1 times [2024-11-16 11:47:03,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:47:03,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805701245] [2024-11-16 11:47:03,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:03,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:47:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:04,665 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:04,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:47:04,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805701245] [2024-11-16 11:47:04,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805701245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:47:04,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:47:04,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:47:04,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522040841] [2024-11-16 11:47:04,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:47:04,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:47:04,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:47:04,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:47:04,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:47:04,668 INFO L87 Difference]: Start difference. First operand 655 states and 960 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:04,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:47:04,995 INFO L93 Difference]: Finished difference Result 1022 states and 1505 transitions. [2024-11-16 11:47:04,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:47:04,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2024-11-16 11:47:04,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:47:04,998 INFO L225 Difference]: With dead ends: 1022 [2024-11-16 11:47:04,998 INFO L226 Difference]: Without dead ends: 684 [2024-11-16 11:47:04,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:47:05,000 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1221 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:47:05,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 1369 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:47:05,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-11-16 11:47:05,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 682. [2024-11-16 11:47:05,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 1.4669603524229076) internal successors, (999), 681 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:05,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 999 transitions. [2024-11-16 11:47:05,013 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 999 transitions. Word has length 218 [2024-11-16 11:47:05,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:47:05,014 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 999 transitions. [2024-11-16 11:47:05,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:05,014 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 999 transitions. [2024-11-16 11:47:05,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-16 11:47:05,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:47:05,017 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:47:05,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 11:47:05,017 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:47:05,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:47:05,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1274938376, now seen corresponding path program 1 times [2024-11-16 11:47:05,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:47:05,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049110960] [2024-11-16 11:47:05,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:05,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:47:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:06,028 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:06,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:47:06,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049110960] [2024-11-16 11:47:06,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049110960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:47:06,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:47:06,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:47:06,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357629263] [2024-11-16 11:47:06,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:47:06,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:47:06,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:47:06,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:47:06,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:47:06,030 INFO L87 Difference]: Start difference. First operand 682 states and 999 transitions. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:06,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:47:06,415 INFO L93 Difference]: Finished difference Result 1027 states and 1511 transitions. [2024-11-16 11:47:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:47:06,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 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 219 [2024-11-16 11:47:06,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:47:06,419 INFO L225 Difference]: With dead ends: 1027 [2024-11-16 11:47:06,419 INFO L226 Difference]: Without dead ends: 689 [2024-11-16 11:47:06,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:47:06,421 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 1229 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:47:06,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 2270 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:47:06,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-16 11:47:06,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 685. [2024-11-16 11:47:06,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 684 states have (on average 1.4663742690058479) internal successors, (1003), 684 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:06,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1003 transitions. [2024-11-16 11:47:06,434 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1003 transitions. Word has length 219 [2024-11-16 11:47:06,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:47:06,434 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 1003 transitions. [2024-11-16 11:47:06,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:06,435 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1003 transitions. [2024-11-16 11:47:06,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-16 11:47:06,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:47:06,436 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:47:06,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 11:47:06,436 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:47:06,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:47:06,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1654734547, now seen corresponding path program 1 times [2024-11-16 11:47:06,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:47:06,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361974595] [2024-11-16 11:47:06,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:06,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:47:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:07,305 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:07,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:47:07,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361974595] [2024-11-16 11:47:07,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361974595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:47:07,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:47:07,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:47:07,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625561385] [2024-11-16 11:47:07,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:47:07,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:47:07,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:47:07,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:47:07,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:47:07,308 INFO L87 Difference]: Start difference. First operand 685 states and 1003 transitions. Second operand has 7 states, 7 states have (on average 31.428571428571427) internal successors, (220), 7 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:07,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:47:07,695 INFO L93 Difference]: Finished difference Result 1069 states and 1573 transitions. [2024-11-16 11:47:07,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:47:07,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.428571428571427) internal successors, (220), 7 states have internal predecessors, (220), 0 states have call successors, (0), 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 220 [2024-11-16 11:47:07,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:47:07,697 INFO L225 Difference]: With dead ends: 1069 [2024-11-16 11:47:07,697 INFO L226 Difference]: Without dead ends: 731 [2024-11-16 11:47:07,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:47:07,699 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 1352 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:47:07,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1352 Valid, 2128 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:47:07,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-11-16 11:47:07,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 691. [2024-11-16 11:47:07,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 690 states have (on average 1.4652173913043478) internal successors, (1011), 690 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:07,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1011 transitions. [2024-11-16 11:47:07,709 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1011 transitions. Word has length 220 [2024-11-16 11:47:07,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:47:07,710 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 1011 transitions. [2024-11-16 11:47:07,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.428571428571427) internal successors, (220), 7 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:07,710 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1011 transitions. [2024-11-16 11:47:07,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-16 11:47:07,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:47:07,711 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:47:07,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 11:47:07,712 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:47:07,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:47:07,712 INFO L85 PathProgramCache]: Analyzing trace with hash -280309251, now seen corresponding path program 1 times [2024-11-16 11:47:07,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:47:07,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585402441] [2024-11-16 11:47:07,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:07,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:47:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:08,810 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:08,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:47:08,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585402441] [2024-11-16 11:47:08,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585402441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:47:08,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021619351] [2024-11-16 11:47:08,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:08,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:47:08,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:47:08,814 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:47:08,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 11:47:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:09,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-16 11:47:09,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:47:09,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:09,834 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 11:47:09,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021619351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:47:09,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 11:47:09,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-11-16 11:47:09,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789283118] [2024-11-16 11:47:09,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:47:09,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:47:09,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:47:09,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:47:09,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:47:09,836 INFO L87 Difference]: Start difference. First operand 691 states and 1011 transitions. Second operand has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:10,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:47:10,261 INFO L93 Difference]: Finished difference Result 1302 states and 1906 transitions. [2024-11-16 11:47:10,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:47:10,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 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 220 [2024-11-16 11:47:10,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:47:10,264 INFO L225 Difference]: With dead ends: 1302 [2024-11-16 11:47:10,264 INFO L226 Difference]: Without dead ends: 690 [2024-11-16 11:47:10,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:47:10,265 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 1327 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:47:10,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 1200 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:47:10,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-16 11:47:10,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 690. [2024-11-16 11:47:10,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 689 states have (on average 1.462989840348331) internal successors, (1008), 689 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:10,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1008 transitions. [2024-11-16 11:47:10,279 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1008 transitions. Word has length 220 [2024-11-16 11:47:10,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:47:10,279 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 1008 transitions. [2024-11-16 11:47:10,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:10,280 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1008 transitions. [2024-11-16 11:47:10,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-16 11:47:10,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:47:10,281 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:47:10,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 11:47:10,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:47:10,482 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:47:10,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:47:10,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1710456352, now seen corresponding path program 1 times [2024-11-16 11:47:10,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:47:10,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758875371] [2024-11-16 11:47:10,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:10,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:47:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:11,619 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:11,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:47:11,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758875371] [2024-11-16 11:47:11,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758875371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:47:11,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:47:11,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:47:11,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804673447] [2024-11-16 11:47:11,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:47:11,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:47:11,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:47:11,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:47:11,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:47:11,622 INFO L87 Difference]: Start difference. First operand 690 states and 1008 transitions. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 5 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:11,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:47:11,966 INFO L93 Difference]: Finished difference Result 1209 states and 1768 transitions. [2024-11-16 11:47:11,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:47:11,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 5 states have internal predecessors, (221), 0 states have call successors, (0), 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 221 [2024-11-16 11:47:11,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:47:11,970 INFO L225 Difference]: With dead ends: 1209 [2024-11-16 11:47:11,970 INFO L226 Difference]: Without dead ends: 690 [2024-11-16 11:47:11,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:47:11,971 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 1296 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:47:11,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 1373 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:47:11,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-16 11:47:11,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 690. [2024-11-16 11:47:11,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 689 states have (on average 1.4615384615384615) internal successors, (1007), 689 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:11,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1007 transitions. [2024-11-16 11:47:11,982 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1007 transitions. Word has length 221 [2024-11-16 11:47:11,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:47:11,983 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 1007 transitions. [2024-11-16 11:47:11,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 5 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:11,983 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1007 transitions. [2024-11-16 11:47:11,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-16 11:47:11,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:47:11,985 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:47:11,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 11:47:11,985 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:47:11,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:47:11,985 INFO L85 PathProgramCache]: Analyzing trace with hash -265678206, now seen corresponding path program 1 times [2024-11-16 11:47:11,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:47:11,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546876113] [2024-11-16 11:47:11,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:11,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:47:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:12,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:47:12,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546876113] [2024-11-16 11:47:12,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546876113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:47:12,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:47:12,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:47:12,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816716207] [2024-11-16 11:47:12,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:47:12,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:47:12,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:47:12,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:47:12,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:47:12,798 INFO L87 Difference]: Start difference. First operand 690 states and 1007 transitions. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:13,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:47:13,093 INFO L93 Difference]: Finished difference Result 1173 states and 1715 transitions. [2024-11-16 11:47:13,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:47:13,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 0 states have call successors, (0), 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 222 [2024-11-16 11:47:13,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:47:13,097 INFO L225 Difference]: With dead ends: 1173 [2024-11-16 11:47:13,097 INFO L226 Difference]: Without dead ends: 688 [2024-11-16 11:47:13,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:47:13,098 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 1276 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:47:13,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 1373 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:47:13,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-16 11:47:13,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2024-11-16 11:47:13,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.4614264919941775) internal successors, (1004), 687 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:13,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1004 transitions. [2024-11-16 11:47:13,111 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1004 transitions. Word has length 222 [2024-11-16 11:47:13,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:47:13,111 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 1004 transitions. [2024-11-16 11:47:13,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:13,111 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1004 transitions. [2024-11-16 11:47:13,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-16 11:47:13,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:47:13,113 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:47:13,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 11:47:13,113 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:47:13,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:47:13,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1335526999, now seen corresponding path program 1 times [2024-11-16 11:47:13,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:47:13,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68602547] [2024-11-16 11:47:13,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:13,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:47:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:15,148 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:15,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:47:15,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68602547] [2024-11-16 11:47:15,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68602547] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:47:15,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507636333] [2024-11-16 11:47:15,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:15,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:47:15,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:47:15,152 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:47:15,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 11:47:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:16,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 1349 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-16 11:47:16,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:47:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:16,938 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:47:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:17,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507636333] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 11:47:17,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 11:47:17,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 11] total 30 [2024-11-16 11:47:17,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143094660] [2024-11-16 11:47:17,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 11:47:17,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-16 11:47:17,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:47:17,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-16 11:47:17,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2024-11-16 11:47:17,947 INFO L87 Difference]: Start difference. First operand 688 states and 1004 transitions. Second operand has 30 states, 30 states have (on average 21.666666666666668) internal successors, (650), 30 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:19,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:47:19,884 INFO L93 Difference]: Finished difference Result 1961 states and 2866 transitions. [2024-11-16 11:47:19,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 11:47:19,885 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 21.666666666666668) internal successors, (650), 30 states have internal predecessors, (650), 0 states have call successors, (0), 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 222 [2024-11-16 11:47:19,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:47:19,889 INFO L225 Difference]: With dead ends: 1961 [2024-11-16 11:47:19,889 INFO L226 Difference]: Without dead ends: 1348 [2024-11-16 11:47:19,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=189, Invalid=1071, Unknown=0, NotChecked=0, Total=1260 [2024-11-16 11:47:19,891 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 5024 mSDsluCounter, 8730 mSDsCounter, 0 mSdLazyCounter, 3583 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5024 SdHoareTripleChecker+Valid, 9477 SdHoareTripleChecker+Invalid, 3586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:47:19,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5024 Valid, 9477 Invalid, 3586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3583 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 11:47:19,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2024-11-16 11:47:19,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1017. [2024-11-16 11:47:19,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 1016 states have (on average 1.452755905511811) internal successors, (1476), 1016 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1476 transitions. [2024-11-16 11:47:19,942 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1476 transitions. Word has length 222 [2024-11-16 11:47:19,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:47:19,942 INFO L471 AbstractCegarLoop]: Abstraction has 1017 states and 1476 transitions. [2024-11-16 11:47:19,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 21.666666666666668) internal successors, (650), 30 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:19,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1476 transitions. [2024-11-16 11:47:19,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-16 11:47:19,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:47:19,945 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:47:19,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 11:47:20,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-16 11:47:20,150 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:47:20,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:47:20,150 INFO L85 PathProgramCache]: Analyzing trace with hash -438742585, now seen corresponding path program 1 times [2024-11-16 11:47:20,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:47:20,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101161484] [2024-11-16 11:47:20,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:20,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:47:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:20,777 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:20,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:47:20,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101161484] [2024-11-16 11:47:20,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101161484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:47:20,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:47:20,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:47:20,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225373374] [2024-11-16 11:47:20,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:47:20,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:47:20,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:47:20,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:47:20,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:47:20,779 INFO L87 Difference]: Start difference. First operand 1017 states and 1476 transitions. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:21,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:47:21,050 INFO L93 Difference]: Finished difference Result 1647 states and 2396 transitions. [2024-11-16 11:47:21,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:47:21,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 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 223 [2024-11-16 11:47:21,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:47:21,053 INFO L225 Difference]: With dead ends: 1647 [2024-11-16 11:47:21,053 INFO L226 Difference]: Without dead ends: 1032 [2024-11-16 11:47:21,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:47:21,055 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1406 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:47:21,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 1376 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:47:21,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2024-11-16 11:47:21,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1014. [2024-11-16 11:47:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 1013 states have (on average 1.4511352418558736) internal successors, (1470), 1013 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1470 transitions. [2024-11-16 11:47:21,073 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1470 transitions. Word has length 223 [2024-11-16 11:47:21,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:47:21,073 INFO L471 AbstractCegarLoop]: Abstraction has 1014 states and 1470 transitions. [2024-11-16 11:47:21,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:21,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1470 transitions. [2024-11-16 11:47:21,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-16 11:47:21,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:47:21,076 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:47:21,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 11:47:21,077 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:47:21,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:47:21,078 INFO L85 PathProgramCache]: Analyzing trace with hash 827832258, now seen corresponding path program 1 times [2024-11-16 11:47:21,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:47:21,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422591632] [2024-11-16 11:47:21,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:21,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:47:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:21,475 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:21,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:47:21,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422591632] [2024-11-16 11:47:21,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422591632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:47:21,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:47:21,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:47:21,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710504904] [2024-11-16 11:47:21,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:47:21,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:47:21,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:47:21,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:47:21,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:47:21,477 INFO L87 Difference]: Start difference. First operand 1014 states and 1470 transitions. Second operand has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:21,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:47:21,693 INFO L93 Difference]: Finished difference Result 1352 states and 1972 transitions. [2024-11-16 11:47:21,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:47:21,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 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 223 [2024-11-16 11:47:21,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:47:21,695 INFO L225 Difference]: With dead ends: 1352 [2024-11-16 11:47:21,695 INFO L226 Difference]: Without dead ends: 736 [2024-11-16 11:47:21,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:47:21,696 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 1376 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:47:21,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 1372 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:47:21,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-11-16 11:47:21,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 736. [2024-11-16 11:47:21,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 735 states have (on average 1.4585034013605442) internal successors, (1072), 735 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:21,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1072 transitions. [2024-11-16 11:47:21,708 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1072 transitions. Word has length 223 [2024-11-16 11:47:21,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:47:21,708 INFO L471 AbstractCegarLoop]: Abstraction has 736 states and 1072 transitions. [2024-11-16 11:47:21,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1072 transitions. [2024-11-16 11:47:21,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-16 11:47:21,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:47:21,711 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:47:21,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 11:47:21,711 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:47:21,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:47:21,712 INFO L85 PathProgramCache]: Analyzing trace with hash 629443247, now seen corresponding path program 1 times [2024-11-16 11:47:21,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:47:21,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194201225] [2024-11-16 11:47:21,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:21,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:47:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:25,422 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:25,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:47:25,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194201225] [2024-11-16 11:47:25,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194201225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:47:25,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:47:25,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 11:47:25,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241831953] [2024-11-16 11:47:25,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:47:25,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 11:47:25,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:47:25,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 11:47:25,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:47:25,425 INFO L87 Difference]: Start difference. First operand 736 states and 1072 transitions. Second operand has 9 states, 9 states have (on average 43.22222222222222) internal successors, (389), 9 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:26,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:47:26,211 INFO L93 Difference]: Finished difference Result 2015 states and 2977 transitions. [2024-11-16 11:47:26,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 11:47:26,212 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 43.22222222222222) internal successors, (389), 9 states have internal predecessors, (389), 0 states have call successors, (0), 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 389 [2024-11-16 11:47:26,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:47:26,217 INFO L225 Difference]: With dead ends: 2015 [2024-11-16 11:47:26,217 INFO L226 Difference]: Without dead ends: 1677 [2024-11-16 11:47:26,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-16 11:47:26,220 INFO L432 NwaCegarLoop]: 768 mSDtfsCounter, 2033 mSDsluCounter, 4161 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 4929 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:47:26,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2033 Valid, 4929 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1604 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:47:26,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2024-11-16 11:47:26,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1090. [2024-11-16 11:47:26,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1089 states have (on average 1.4674012855831038) internal successors, (1598), 1089 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:26,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1598 transitions. [2024-11-16 11:47:26,250 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1598 transitions. Word has length 389 [2024-11-16 11:47:26,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:47:26,251 INFO L471 AbstractCegarLoop]: Abstraction has 1090 states and 1598 transitions. [2024-11-16 11:47:26,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 43.22222222222222) internal successors, (389), 9 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:47:26,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1598 transitions. [2024-11-16 11:47:26,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-16 11:47:26,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:47:26,254 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:47:26,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 11:47:26,254 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:47:26,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:47:26,254 INFO L85 PathProgramCache]: Analyzing trace with hash -2030412212, now seen corresponding path program 1 times [2024-11-16 11:47:26,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:47:26,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984229191] [2024-11-16 11:47:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:26,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:47:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:32,212 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 162 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:32,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:47:32,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984229191] [2024-11-16 11:47:32,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984229191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:47:32,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133664880] [2024-11-16 11:47:32,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:47:32,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:47:32,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:47:32,215 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:47:32,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 11:47:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:47:33,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 2476 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-11-16 11:47:33,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:47:34,929 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 45 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:34,929 INFO L311 TraceCheckSpWp]: Computing backward predicates...