./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label35.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem16_label35.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 00a3c697369565c764a629399f75f0a57cc9f6d9ed54e92f480d6927d7ff14f0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:47:46,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:47:46,197 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:47:46,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:47:46,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:47:46,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:47:46,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:47:46,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:47:46,215 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:47:46,216 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:47:46,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:47:46,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:47:46,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:47:46,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:47:46,217 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:47:46,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:47:46,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:47:46,218 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:47:46,218 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:47:46,218 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:47:46,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:47:46,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:47:46,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:47:46,221 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:47:46,221 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:47:46,221 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:47:46,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:47:46,222 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:47:46,222 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:47:46,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:47:46,222 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:47:46,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:47:46,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:47:46,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:47:46,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:47:46,223 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:47:46,223 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:47:46,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:47:46,223 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:47:46,223 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:47:46,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:47:46,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:47:46,226 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00a3c697369565c764a629399f75f0a57cc9f6d9ed54e92f480d6927d7ff14f0 [2024-11-09 19:47:46,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:47:46,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:47:46,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:47:46,432 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:47:46,432 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:47:46,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label35.c [2024-11-09 19:47:47,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:47:47,893 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:47:47,894 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label35.c [2024-11-09 19:47:47,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54cb22939/a2a8b5d527094b4f9163ed8706fae4cd/FLAG61fa6e5e4 [2024-11-09 19:47:48,203 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54cb22939/a2a8b5d527094b4f9163ed8706fae4cd [2024-11-09 19:47:48,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:47:48,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:47:48,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:47:48,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:47:48,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:47:48,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:48,212 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dce495d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48, skipping insertion in model container [2024-11-09 19:47:48,212 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:48,255 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:47:48,415 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label35.c[4426,4439] [2024-11-09 19:47:48,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:47:48,717 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:47:48,733 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label35.c[4426,4439] [2024-11-09 19:47:48,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:47:48,840 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:47:48,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48 WrapperNode [2024-11-09 19:47:48,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:47:48,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:47:48,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:47:48,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:47:48,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:48,874 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:48,947 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-11-09 19:47:48,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:47:48,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:47:48,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:47:48,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:47:48,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:48,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:48,969 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:49,056 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 19:47:49,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:49,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:49,095 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:49,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:49,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:49,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:49,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:47:49,129 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:47:49,129 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:47:49,129 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:47:49,129 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48" (1/1) ... [2024-11-09 19:47:49,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:47:49,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:47:49,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 19:47:49,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 19:47:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:47:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:47:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:47:49,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:47:49,240 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:47:49,242 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:47:51,069 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1501: havoc calculate_output_#t~ret7#1; [2024-11-09 19:47:51,162 INFO L? ?]: Removed 757 outVars from TransFormulas that were not future-live. [2024-11-09 19:47:51,163 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:47:51,185 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:47:51,186 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:47:51,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:47:51 BoogieIcfgContainer [2024-11-09 19:47:51,186 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:47:51,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:47:51,188 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:47:51,190 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:47:51,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:47:48" (1/3) ... [2024-11-09 19:47:51,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c088fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:47:51, skipping insertion in model container [2024-11-09 19:47:51,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:47:48" (2/3) ... [2024-11-09 19:47:51,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c088fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:47:51, skipping insertion in model container [2024-11-09 19:47:51,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:47:51" (3/3) ... [2024-11-09 19:47:51,192 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label35.c [2024-11-09 19:47:51,203 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:47:51,203 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:47:51,264 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:47:51,270 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;@3f3df11e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:47:51,271 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:47:51,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 399 states, 397 states have (on average 2.4886649874055418) internal successors, (988), 398 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:51,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 19:47:51,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:47:51,283 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:47:51,284 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:47:51,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:47:51,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1419308241, now seen corresponding path program 1 times [2024-11-09 19:47:51,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:47:51,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127519135] [2024-11-09 19:47:51,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:47:51,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:47:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:47:51,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:47:51,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:47:51,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127519135] [2024-11-09 19:47:51,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127519135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:47:51,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:47:51,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:47:51,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175612064] [2024-11-09 19:47:51,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:47:51,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:47:51,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:47:51,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:47:51,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:47:51,579 INFO L87 Difference]: Start difference. First operand has 399 states, 397 states have (on average 2.4886649874055418) internal successors, (988), 398 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:53,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:47:53,256 INFO L93 Difference]: Finished difference Result 1143 states and 2910 transitions. [2024-11-09 19:47:53,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:47:53,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-11-09 19:47:53,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:47:53,272 INFO L225 Difference]: With dead ends: 1143 [2024-11-09 19:47:53,273 INFO L226 Difference]: Without dead ends: 665 [2024-11-09 19:47:53,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:47:53,278 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 607 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:47:53,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 64 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:47:53,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-09 19:47:53,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2024-11-09 19:47:53,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 2.549698795180723) internal successors, (1693), 664 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:53,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 1693 transitions. [2024-11-09 19:47:53,343 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 1693 transitions. Word has length 43 [2024-11-09 19:47:53,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:47:53,343 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 1693 transitions. [2024-11-09 19:47:53,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:53,344 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 1693 transitions. [2024-11-09 19:47:53,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 19:47:53,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:47:53,346 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:47:53,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:47:53,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:47:53,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:47:53,347 INFO L85 PathProgramCache]: Analyzing trace with hash -394208854, now seen corresponding path program 1 times [2024-11-09 19:47:53,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:47:53,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609113341] [2024-11-09 19:47:53,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:47:53,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:47:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:47:53,504 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:47:53,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:47:53,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609113341] [2024-11-09 19:47:53,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609113341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:47:53,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:47:53,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:47:53,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654555849] [2024-11-09 19:47:53,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:47:53,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:47:53,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:47:53,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:47:53,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:47:53,508 INFO L87 Difference]: Start difference. First operand 665 states and 1693 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:55,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:47:55,009 INFO L93 Difference]: Finished difference Result 1988 states and 5073 transitions. [2024-11-09 19:47:55,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:47:55,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-11-09 19:47:55,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:47:55,015 INFO L225 Difference]: With dead ends: 1988 [2024-11-09 19:47:55,015 INFO L226 Difference]: Without dead ends: 1325 [2024-11-09 19:47:55,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:47:55,020 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 607 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:47:55,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 80 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:47:55,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2024-11-09 19:47:55,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1325. [2024-11-09 19:47:55,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1324 states have (on average 2.4546827794561934) internal successors, (3250), 1324 states have internal predecessors, (3250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:55,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 3250 transitions. [2024-11-09 19:47:55,057 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 3250 transitions. Word has length 109 [2024-11-09 19:47:55,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:47:55,059 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 3250 transitions. [2024-11-09 19:47:55,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:55,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 3250 transitions. [2024-11-09 19:47:55,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-09 19:47:55,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:47:55,061 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:47:55,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:47:55,062 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:47:55,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:47:55,063 INFO L85 PathProgramCache]: Analyzing trace with hash -982523674, now seen corresponding path program 1 times [2024-11-09 19:47:55,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:47:55,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694455521] [2024-11-09 19:47:55,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:47:55,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:47:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:47:55,170 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:47:55,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:47:55,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694455521] [2024-11-09 19:47:55,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694455521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:47:55,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:47:55,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:47:55,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603830444] [2024-11-09 19:47:55,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:47:55,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:47:55,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:47:55,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:47:55,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:47:55,172 INFO L87 Difference]: Start difference. First operand 1325 states and 3250 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:56,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:47:56,510 INFO L93 Difference]: Finished difference Result 3308 states and 8055 transitions. [2024-11-09 19:47:56,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:47:56,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-09 19:47:56,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:47:56,517 INFO L225 Difference]: With dead ends: 3308 [2024-11-09 19:47:56,517 INFO L226 Difference]: Without dead ends: 1985 [2024-11-09 19:47:56,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:47:56,519 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 643 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:47:56,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 158 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:47:56,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2024-11-09 19:47:56,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1985. [2024-11-09 19:47:56,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1985 states, 1984 states have (on average 2.1507056451612905) internal successors, (4267), 1984 states have internal predecessors, (4267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:56,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 4267 transitions. [2024-11-09 19:47:56,545 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 4267 transitions. Word has length 112 [2024-11-09 19:47:56,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:47:56,546 INFO L471 AbstractCegarLoop]: Abstraction has 1985 states and 4267 transitions. [2024-11-09 19:47:56,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:56,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 4267 transitions. [2024-11-09 19:47:56,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 19:47:56,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:47:56,547 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:47:56,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:47:56,548 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:47:56,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:47:56,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1630502130, now seen corresponding path program 1 times [2024-11-09 19:47:56,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:47:56,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513991276] [2024-11-09 19:47:56,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:47:56,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:47:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:47:56,657 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:47:56,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:47:56,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513991276] [2024-11-09 19:47:56,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513991276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:47:56,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:47:56,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:47:56,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630003225] [2024-11-09 19:47:56,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:47:56,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:47:56,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:47:56,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:47:56,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:47:56,660 INFO L87 Difference]: Start difference. First operand 1985 states and 4267 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:58,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:47:58,009 INFO L93 Difference]: Finished difference Result 5948 states and 12795 transitions. [2024-11-09 19:47:58,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:47:58,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-11-09 19:47:58,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:47:58,020 INFO L225 Difference]: With dead ends: 5948 [2024-11-09 19:47:58,020 INFO L226 Difference]: Without dead ends: 3965 [2024-11-09 19:47:58,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:47:58,026 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 530 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:47:58,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 263 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:47:58,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2024-11-09 19:47:58,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 3965. [2024-11-09 19:47:58,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 3964 states have (on average 2.0285065590312814) internal successors, (8041), 3964 states have internal predecessors, (8041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:58,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 8041 transitions. [2024-11-09 19:47:58,084 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 8041 transitions. Word has length 116 [2024-11-09 19:47:58,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:47:58,085 INFO L471 AbstractCegarLoop]: Abstraction has 3965 states and 8041 transitions. [2024-11-09 19:47:58,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:58,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 8041 transitions. [2024-11-09 19:47:58,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-09 19:47:58,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:47:58,088 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:47:58,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:47:58,088 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:47:58,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:47:58,089 INFO L85 PathProgramCache]: Analyzing trace with hash -205847238, now seen corresponding path program 1 times [2024-11-09 19:47:58,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:47:58,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761488008] [2024-11-09 19:47:58,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:47:58,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:47:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:47:58,303 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:47:58,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:47:58,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761488008] [2024-11-09 19:47:58,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761488008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:47:58,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:47:58,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:47:58,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157406485] [2024-11-09 19:47:58,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:47:58,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:47:58,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:47:58,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:47:58,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:47:58,309 INFO L87 Difference]: Start difference. First operand 3965 states and 8041 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:59,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:47:59,713 INFO L93 Difference]: Finished difference Result 10568 states and 21371 transitions. [2024-11-09 19:47:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:47:59,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2024-11-09 19:47:59,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:47:59,731 INFO L225 Difference]: With dead ends: 10568 [2024-11-09 19:47:59,731 INFO L226 Difference]: Without dead ends: 6605 [2024-11-09 19:47:59,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:47:59,736 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 517 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:47:59,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 122 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:47:59,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6605 states. [2024-11-09 19:47:59,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6605 to 6605. [2024-11-09 19:47:59,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6605 states, 6604 states have (on average 1.9978800726832222) internal successors, (13194), 6604 states have internal predecessors, (13194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:59,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6605 states to 6605 states and 13194 transitions. [2024-11-09 19:47:59,824 INFO L78 Accepts]: Start accepts. Automaton has 6605 states and 13194 transitions. Word has length 140 [2024-11-09 19:47:59,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:47:59,825 INFO L471 AbstractCegarLoop]: Abstraction has 6605 states and 13194 transitions. [2024-11-09 19:47:59,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:47:59,825 INFO L276 IsEmpty]: Start isEmpty. Operand 6605 states and 13194 transitions. [2024-11-09 19:47:59,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-09 19:47:59,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:47:59,829 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:47:59,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:47:59,829 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:47:59,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:47:59,830 INFO L85 PathProgramCache]: Analyzing trace with hash -479520767, now seen corresponding path program 1 times [2024-11-09 19:47:59,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:47:59,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119346681] [2024-11-09 19:47:59,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:47:59,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:47:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:00,306 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 19:48:00,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:48:00,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119346681] [2024-11-09 19:48:00,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119346681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:48:00,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:48:00,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:48:00,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570778674] [2024-11-09 19:48:00,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:48:00,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:48:00,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:48:00,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:48:00,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:48:00,312 INFO L87 Difference]: Start difference. First operand 6605 states and 13194 transitions. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:01,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:48:01,773 INFO L93 Difference]: Finished difference Result 12548 states and 25154 transitions. [2024-11-09 19:48:01,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:48:01,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 355 [2024-11-09 19:48:01,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:48:01,797 INFO L225 Difference]: With dead ends: 12548 [2024-11-09 19:48:01,797 INFO L226 Difference]: Without dead ends: 6605 [2024-11-09 19:48:01,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:48:01,806 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 389 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:48:01,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 328 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:48:01,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6605 states. [2024-11-09 19:48:01,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6605 to 6605. [2024-11-09 19:48:01,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6605 states, 6604 states have (on average 1.9969715324046033) internal successors, (13188), 6604 states have internal predecessors, (13188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:01,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6605 states to 6605 states and 13188 transitions. [2024-11-09 19:48:01,896 INFO L78 Accepts]: Start accepts. Automaton has 6605 states and 13188 transitions. Word has length 355 [2024-11-09 19:48:01,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:48:01,897 INFO L471 AbstractCegarLoop]: Abstraction has 6605 states and 13188 transitions. [2024-11-09 19:48:01,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:01,897 INFO L276 IsEmpty]: Start isEmpty. Operand 6605 states and 13188 transitions. [2024-11-09 19:48:01,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-09 19:48:01,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:48:01,901 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:48:01,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:48:01,901 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:48:01,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:48:01,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1058352411, now seen corresponding path program 1 times [2024-11-09 19:48:01,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:48:01,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947324913] [2024-11-09 19:48:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:01,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:48:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:02,373 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:48:02,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:48:02,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947324913] [2024-11-09 19:48:02,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947324913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:48:02,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:48:02,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 19:48:02,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051620069] [2024-11-09 19:48:02,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:48:02,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 19:48:02,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:48:02,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 19:48:02,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:48:02,376 INFO L87 Difference]: Start difference. First operand 6605 states and 13188 transitions. Second operand has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:04,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:48:04,158 INFO L93 Difference]: Finished difference Result 12472 states and 24798 transitions. [2024-11-09 19:48:04,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 19:48:04,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 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 367 [2024-11-09 19:48:04,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:48:04,167 INFO L225 Difference]: With dead ends: 12472 [2024-11-09 19:48:04,167 INFO L226 Difference]: Without dead ends: 6275 [2024-11-09 19:48:04,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:48:04,172 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 572 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 3011 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 3346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 3011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:48:04,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 305 Invalid, 3346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 3011 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:48:04,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6275 states. [2024-11-09 19:48:04,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6275 to 6275. [2024-11-09 19:48:04,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6275 states, 6274 states have (on average 1.8718520879821485) internal successors, (11744), 6274 states have internal predecessors, (11744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:04,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6275 states to 6275 states and 11744 transitions. [2024-11-09 19:48:04,236 INFO L78 Accepts]: Start accepts. Automaton has 6275 states and 11744 transitions. Word has length 367 [2024-11-09 19:48:04,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:48:04,236 INFO L471 AbstractCegarLoop]: Abstraction has 6275 states and 11744 transitions. [2024-11-09 19:48:04,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:04,237 INFO L276 IsEmpty]: Start isEmpty. Operand 6275 states and 11744 transitions. [2024-11-09 19:48:04,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-09 19:48:04,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:48:04,240 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:48:04,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:48:04,240 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:48:04,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:48:04,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1957372425, now seen corresponding path program 1 times [2024-11-09 19:48:04,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:48:04,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8376285] [2024-11-09 19:48:04,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:04,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:48:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 19:48:04,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:48:04,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8376285] [2024-11-09 19:48:04,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8376285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:48:04,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:48:04,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:48:04,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257327379] [2024-11-09 19:48:04,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:48:04,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:48:04,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:48:04,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:48:04,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:48:04,480 INFO L87 Difference]: Start difference. First operand 6275 states and 11744 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:05,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:48:05,506 INFO L93 Difference]: Finished difference Result 14858 states and 27977 transitions. [2024-11-09 19:48:05,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:48:05,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 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 384 [2024-11-09 19:48:05,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:48:05,518 INFO L225 Difference]: With dead ends: 14858 [2024-11-09 19:48:05,519 INFO L226 Difference]: Without dead ends: 9245 [2024-11-09 19:48:05,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:48:05,524 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 570 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:48:05,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 44 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:48:05,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9245 states. [2024-11-09 19:48:05,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9245 to 7595. [2024-11-09 19:48:05,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7595 states, 7594 states have (on average 1.8855675533315777) internal successors, (14319), 7594 states have internal predecessors, (14319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7595 states to 7595 states and 14319 transitions. [2024-11-09 19:48:05,601 INFO L78 Accepts]: Start accepts. Automaton has 7595 states and 14319 transitions. Word has length 384 [2024-11-09 19:48:05,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:48:05,602 INFO L471 AbstractCegarLoop]: Abstraction has 7595 states and 14319 transitions. [2024-11-09 19:48:05,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:05,602 INFO L276 IsEmpty]: Start isEmpty. Operand 7595 states and 14319 transitions. [2024-11-09 19:48:05,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2024-11-09 19:48:05,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:48:05,606 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:48:05,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:48:05,606 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:48:05,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:48:05,607 INFO L85 PathProgramCache]: Analyzing trace with hash 890898075, now seen corresponding path program 1 times [2024-11-09 19:48:05,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:48:05,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169387596] [2024-11-09 19:48:05,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:05,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:48:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:06,095 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:48:06,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:48:06,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169387596] [2024-11-09 19:48:06,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169387596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:48:06,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:48:06,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:48:06,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37258566] [2024-11-09 19:48:06,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:48:06,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:48:06,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:48:06,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:48:06,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:48:06,098 INFO L87 Difference]: Start difference. First operand 7595 states and 14319 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:07,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:48:07,301 INFO L93 Difference]: Finished difference Result 15188 states and 28642 transitions. [2024-11-09 19:48:07,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:48:07,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 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 438 [2024-11-09 19:48:07,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:48:07,316 INFO L225 Difference]: With dead ends: 15188 [2024-11-09 19:48:07,316 INFO L226 Difference]: Without dead ends: 7925 [2024-11-09 19:48:07,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:48:07,322 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 435 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:48:07,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 124 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:48:07,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7925 states. [2024-11-09 19:48:07,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7925 to 7925. [2024-11-09 19:48:07,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7925 states, 7924 states have (on average 1.882256436143362) internal successors, (14915), 7924 states have internal predecessors, (14915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:07,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7925 states to 7925 states and 14915 transitions. [2024-11-09 19:48:07,404 INFO L78 Accepts]: Start accepts. Automaton has 7925 states and 14915 transitions. Word has length 438 [2024-11-09 19:48:07,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:48:07,405 INFO L471 AbstractCegarLoop]: Abstraction has 7925 states and 14915 transitions. [2024-11-09 19:48:07,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 7925 states and 14915 transitions. [2024-11-09 19:48:07,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2024-11-09 19:48:07,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:48:07,411 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:48:07,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:48:07,412 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:48:07,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:48:07,415 INFO L85 PathProgramCache]: Analyzing trace with hash -2087673359, now seen corresponding path program 1 times [2024-11-09 19:48:07,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:48:07,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826503632] [2024-11-09 19:48:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:07,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:48:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:07,658 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-09 19:48:07,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:48:07,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826503632] [2024-11-09 19:48:07,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826503632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:48:07,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:48:07,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:48:07,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132562421] [2024-11-09 19:48:07,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:48:07,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:48:07,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:48:07,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:48:07,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:48:07,661 INFO L87 Difference]: Start difference. First operand 7925 states and 14915 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:08,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:48:08,640 INFO L93 Difference]: Finished difference Result 17498 states and 33091 transitions. [2024-11-09 19:48:08,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:48:08,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 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 499 [2024-11-09 19:48:08,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:48:08,653 INFO L225 Difference]: With dead ends: 17498 [2024-11-09 19:48:08,653 INFO L226 Difference]: Without dead ends: 10235 [2024-11-09 19:48:08,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:48:08,659 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 571 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:48:08,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 34 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 19:48:08,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10235 states. [2024-11-09 19:48:08,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10235 to 9905. [2024-11-09 19:48:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9905 states, 9904 states have (on average 1.890246365105008) internal successors, (18721), 9904 states have internal predecessors, (18721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:08,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9905 states to 9905 states and 18721 transitions. [2024-11-09 19:48:08,785 INFO L78 Accepts]: Start accepts. Automaton has 9905 states and 18721 transitions. Word has length 499 [2024-11-09 19:48:08,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:48:08,786 INFO L471 AbstractCegarLoop]: Abstraction has 9905 states and 18721 transitions. [2024-11-09 19:48:08,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:08,786 INFO L276 IsEmpty]: Start isEmpty. Operand 9905 states and 18721 transitions. [2024-11-09 19:48:08,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2024-11-09 19:48:08,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:48:08,790 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:48:08,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:48:08,790 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:48:08,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:48:08,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1843085786, now seen corresponding path program 1 times [2024-11-09 19:48:08,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:48:08,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533907702] [2024-11-09 19:48:08,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:08,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:48:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:09,186 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2024-11-09 19:48:09,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:48:09,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533907702] [2024-11-09 19:48:09,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533907702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:48:09,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245565079] [2024-11-09 19:48:09,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:09,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:48:09,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:48:09,189 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:48:09,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:48:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:09,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:48:09,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:48:09,893 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2024-11-09 19:48:09,893 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:48:09,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245565079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:48:09,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:48:09,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-09 19:48:09,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769521867] [2024-11-09 19:48:09,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:48:09,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:48:09,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:48:09,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:48:09,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:48:09,895 INFO L87 Difference]: Start difference. First operand 9905 states and 18721 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 2 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:10,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:48:10,784 INFO L93 Difference]: Finished difference Result 11888 states and 22335 transitions. [2024-11-09 19:48:10,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:48:10,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 2 states have internal predecessors, (251), 0 states have call successors, (0), 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 543 [2024-11-09 19:48:10,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:48:10,830 INFO L225 Difference]: With dead ends: 11888 [2024-11-09 19:48:10,831 INFO L226 Difference]: Without dead ends: 11885 [2024-11-09 19:48:10,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:48:10,833 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 369 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:48:10,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 87 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:48:10,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11885 states. [2024-11-09 19:48:10,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11885 to 9905. [2024-11-09 19:48:10,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9905 states, 9904 states have (on average 1.890145395799677) internal successors, (18720), 9904 states have internal predecessors, (18720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:10,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9905 states to 9905 states and 18720 transitions. [2024-11-09 19:48:10,966 INFO L78 Accepts]: Start accepts. Automaton has 9905 states and 18720 transitions. Word has length 543 [2024-11-09 19:48:10,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:48:10,967 INFO L471 AbstractCegarLoop]: Abstraction has 9905 states and 18720 transitions. [2024-11-09 19:48:10,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 2 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:10,967 INFO L276 IsEmpty]: Start isEmpty. Operand 9905 states and 18720 transitions. [2024-11-09 19:48:10,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 966 [2024-11-09 19:48:10,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:48:10,986 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:48:11,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 19:48:11,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 19:48:11,187 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:48:11,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:48:11,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1610542739, now seen corresponding path program 1 times [2024-11-09 19:48:11,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:48:11,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398827316] [2024-11-09 19:48:11,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:11,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:48:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:11,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1791 backedges. 1085 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2024-11-09 19:48:11,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:48:11,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398827316] [2024-11-09 19:48:11,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398827316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:48:11,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:48:11,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:48:11,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878443790] [2024-11-09 19:48:11,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:48:11,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:48:11,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:48:11,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:48:11,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:48:11,730 INFO L87 Difference]: Start difference. First operand 9905 states and 18720 transitions. Second operand has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:12,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:48:12,664 INFO L93 Difference]: Finished difference Result 22778 states and 43171 transitions. [2024-11-09 19:48:12,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:48:12,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 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 965 [2024-11-09 19:48:12,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:48:12,679 INFO L225 Difference]: With dead ends: 22778 [2024-11-09 19:48:12,679 INFO L226 Difference]: Without dead ends: 12215 [2024-11-09 19:48:12,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:48:12,689 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 532 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:48:12,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 697 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 19:48:12,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12215 states. [2024-11-09 19:48:12,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12215 to 11885. [2024-11-09 19:48:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11885 states, 11884 states have (on average 1.8688152137327498) internal successors, (22209), 11884 states have internal predecessors, (22209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11885 states to 11885 states and 22209 transitions. [2024-11-09 19:48:12,801 INFO L78 Accepts]: Start accepts. Automaton has 11885 states and 22209 transitions. Word has length 965 [2024-11-09 19:48:12,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:48:12,802 INFO L471 AbstractCegarLoop]: Abstraction has 11885 states and 22209 transitions. [2024-11-09 19:48:12,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:12,802 INFO L276 IsEmpty]: Start isEmpty. Operand 11885 states and 22209 transitions. [2024-11-09 19:48:12,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1396 [2024-11-09 19:48:12,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:48:12,823 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-09 19:48:12,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:48:12,823 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:48:12,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:48:12,824 INFO L85 PathProgramCache]: Analyzing trace with hash 399172694, now seen corresponding path program 1 times [2024-11-09 19:48:12,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:48:12,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106608627] [2024-11-09 19:48:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:12,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:48:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3358 backedges. 2450 proven. 0 refuted. 0 times theorem prover too weak. 908 trivial. 0 not checked. [2024-11-09 19:48:14,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:48:14,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106608627] [2024-11-09 19:48:14,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106608627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:48:14,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:48:14,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 19:48:14,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378253891] [2024-11-09 19:48:14,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:48:14,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 19:48:14,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:48:14,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 19:48:14,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:48:14,320 INFO L87 Difference]: Start difference. First operand 11885 states and 22209 transitions. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:15,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:48:15,907 INFO L93 Difference]: Finished difference Result 23769 states and 44433 transitions. [2024-11-09 19:48:15,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 19:48:15,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 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 1395 [2024-11-09 19:48:15,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:48:15,921 INFO L225 Difference]: With dead ends: 23769 [2024-11-09 19:48:15,921 INFO L226 Difference]: Without dead ends: 12546 [2024-11-09 19:48:15,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:48:15,927 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 531 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 3337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:48:15,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 882 Invalid, 3337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:48:15,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12546 states. [2024-11-09 19:48:16,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12546 to 12545. [2024-11-09 19:48:16,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12545 states, 12544 states have (on average 1.8652742346938775) internal successors, (23398), 12544 states have internal predecessors, (23398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:16,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12545 states to 12545 states and 23398 transitions. [2024-11-09 19:48:16,031 INFO L78 Accepts]: Start accepts. Automaton has 12545 states and 23398 transitions. Word has length 1395 [2024-11-09 19:48:16,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:48:16,032 INFO L471 AbstractCegarLoop]: Abstraction has 12545 states and 23398 transitions. [2024-11-09 19:48:16,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:16,032 INFO L276 IsEmpty]: Start isEmpty. Operand 12545 states and 23398 transitions. [2024-11-09 19:48:16,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1409 [2024-11-09 19:48:16,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:48:16,053 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:48:16,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 19:48:16,053 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:48:16,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:48:16,054 INFO L85 PathProgramCache]: Analyzing trace with hash -143257241, now seen corresponding path program 1 times [2024-11-09 19:48:16,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:48:16,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721730241] [2024-11-09 19:48:16,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:16,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:48:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:17,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3287 backedges. 2419 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2024-11-09 19:48:17,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:48:17,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721730241] [2024-11-09 19:48:17,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721730241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:48:17,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:48:17,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:48:17,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571431478] [2024-11-09 19:48:17,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:48:17,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:48:17,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:48:17,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:48:17,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:48:17,251 INFO L87 Difference]: Start difference. First operand 12545 states and 23398 transitions. Second operand has 4 states, 4 states have (on average 193.75) internal successors, (775), 4 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:18,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:48:18,460 INFO L93 Difference]: Finished difference Result 24437 states and 45613 transitions. [2024-11-09 19:48:18,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 19:48:18,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 193.75) internal successors, (775), 4 states have internal predecessors, (775), 0 states have call successors, (0), 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 1408 [2024-11-09 19:48:18,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:48:18,473 INFO L225 Difference]: With dead ends: 24437 [2024-11-09 19:48:18,473 INFO L226 Difference]: Without dead ends: 12554 [2024-11-09 19:48:18,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:48:18,529 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 479 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:48:18,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 714 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:48:18,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12554 states. [2024-11-09 19:48:18,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12554 to 12215. [2024-11-09 19:48:18,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12215 states, 12214 states have (on average 1.8663009661044703) internal successors, (22795), 12214 states have internal predecessors, (22795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:18,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12215 states to 12215 states and 22795 transitions. [2024-11-09 19:48:18,683 INFO L78 Accepts]: Start accepts. Automaton has 12215 states and 22795 transitions. Word has length 1408 [2024-11-09 19:48:18,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:48:18,684 INFO L471 AbstractCegarLoop]: Abstraction has 12215 states and 22795 transitions. [2024-11-09 19:48:18,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.75) internal successors, (775), 4 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:18,684 INFO L276 IsEmpty]: Start isEmpty. Operand 12215 states and 22795 transitions. [2024-11-09 19:48:18,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1425 [2024-11-09 19:48:18,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:48:18,719 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:48:18,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:48:18,719 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:48:18,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:48:18,720 INFO L85 PathProgramCache]: Analyzing trace with hash -987724674, now seen corresponding path program 1 times [2024-11-09 19:48:18,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:48:18,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535016287] [2024-11-09 19:48:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:18,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:48:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3503 backedges. 2432 proven. 0 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2024-11-09 19:48:19,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:48:19,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535016287] [2024-11-09 19:48:19,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535016287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:48:19,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:48:19,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:48:19,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532513994] [2024-11-09 19:48:19,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:48:19,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:48:19,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:48:19,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:48:19,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:48:19,414 INFO L87 Difference]: Start difference. First operand 12215 states and 22795 transitions. Second operand has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:20,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:48:20,321 INFO L93 Difference]: Finished difference Result 24758 states and 46212 transitions. [2024-11-09 19:48:20,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:48:20,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 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 1424 [2024-11-09 19:48:20,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:48:20,334 INFO L225 Difference]: With dead ends: 24758 [2024-11-09 19:48:20,335 INFO L226 Difference]: Without dead ends: 13205 [2024-11-09 19:48:20,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:48:20,342 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 458 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:48:20,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 689 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:48:20,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13205 states. [2024-11-09 19:48:20,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13205 to 12875. [2024-11-09 19:48:20,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12875 states, 12874 states have (on average 1.85125058256952) internal successors, (23833), 12874 states have internal predecessors, (23833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:20,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12875 states to 12875 states and 23833 transitions. [2024-11-09 19:48:20,448 INFO L78 Accepts]: Start accepts. Automaton has 12875 states and 23833 transitions. Word has length 1424 [2024-11-09 19:48:20,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:48:20,448 INFO L471 AbstractCegarLoop]: Abstraction has 12875 states and 23833 transitions. [2024-11-09 19:48:20,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:20,449 INFO L276 IsEmpty]: Start isEmpty. Operand 12875 states and 23833 transitions. [2024-11-09 19:48:20,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1450 [2024-11-09 19:48:20,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:48:20,471 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:48:20,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 19:48:20,472 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:48:20,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:48:20,472 INFO L85 PathProgramCache]: Analyzing trace with hash 626547110, now seen corresponding path program 1 times [2024-11-09 19:48:20,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:48:20,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306924577] [2024-11-09 19:48:20,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:20,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:48:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:21,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3653 backedges. 2612 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2024-11-09 19:48:21,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:48:21,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306924577] [2024-11-09 19:48:21,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306924577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:48:21,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:48:21,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:48:21,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654654863] [2024-11-09 19:48:21,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:48:21,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:48:21,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:48:21,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:48:21,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:48:21,465 INFO L87 Difference]: Start difference. First operand 12875 states and 23833 transitions. Second operand has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:22,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:48:22,650 INFO L93 Difference]: Finished difference Result 25088 states and 46474 transitions. [2024-11-09 19:48:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:48:22,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 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 1449 [2024-11-09 19:48:22,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:48:22,661 INFO L225 Difference]: With dead ends: 25088 [2024-11-09 19:48:22,661 INFO L226 Difference]: Without dead ends: 12875 [2024-11-09 19:48:22,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:48:22,668 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 382 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 2327 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:48:22,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 876 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2327 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:48:22,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12875 states. [2024-11-09 19:48:22,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12875 to 12875. [2024-11-09 19:48:22,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12875 states, 12874 states have (on average 1.8503184713375795) internal successors, (23821), 12874 states have internal predecessors, (23821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:22,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12875 states to 12875 states and 23821 transitions. [2024-11-09 19:48:22,771 INFO L78 Accepts]: Start accepts. Automaton has 12875 states and 23821 transitions. Word has length 1449 [2024-11-09 19:48:22,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:48:22,772 INFO L471 AbstractCegarLoop]: Abstraction has 12875 states and 23821 transitions. [2024-11-09 19:48:22,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:22,772 INFO L276 IsEmpty]: Start isEmpty. Operand 12875 states and 23821 transitions. [2024-11-09 19:48:22,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1540 [2024-11-09 19:48:22,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:48:22,797 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:48:22,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:48:22,797 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:48:22,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:48:22,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1424741136, now seen corresponding path program 1 times [2024-11-09 19:48:22,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:48:22,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24759959] [2024-11-09 19:48:22,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:22,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:48:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3950 backedges. 2167 proven. 0 refuted. 0 times theorem prover too weak. 1783 trivial. 0 not checked. [2024-11-09 19:48:23,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:48:23,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24759959] [2024-11-09 19:48:23,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24759959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:48:23,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:48:23,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:48:23,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705025018] [2024-11-09 19:48:23,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:48:23,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:48:23,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:48:23,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:48:23,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:48:23,738 INFO L87 Difference]: Start difference. First operand 12875 states and 23821 transitions. Second operand has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:24,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:48:24,704 INFO L93 Difference]: Finished difference Result 28718 states and 53216 transitions. [2024-11-09 19:48:24,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:48:24,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 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 1539 [2024-11-09 19:48:24,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:48:24,719 INFO L225 Difference]: With dead ends: 28718 [2024-11-09 19:48:24,719 INFO L226 Difference]: Without dead ends: 14525 [2024-11-09 19:48:24,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:48:24,728 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 358 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:48:24,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 676 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 19:48:24,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14525 states. [2024-11-09 19:48:24,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14525 to 13865. [2024-11-09 19:48:24,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13865 states, 13864 states have (on average 1.836410848240046) internal successors, (25460), 13864 states have internal predecessors, (25460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:24,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13865 states to 13865 states and 25460 transitions. [2024-11-09 19:48:24,838 INFO L78 Accepts]: Start accepts. Automaton has 13865 states and 25460 transitions. Word has length 1539 [2024-11-09 19:48:24,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:48:24,838 INFO L471 AbstractCegarLoop]: Abstraction has 13865 states and 25460 transitions. [2024-11-09 19:48:24,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:24,839 INFO L276 IsEmpty]: Start isEmpty. Operand 13865 states and 25460 transitions. [2024-11-09 19:48:24,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1542 [2024-11-09 19:48:24,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:48:24,856 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:48:24,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 19:48:24,856 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:48:24,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:48:24,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2004534454, now seen corresponding path program 1 times [2024-11-09 19:48:24,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:48:24,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059067775] [2024-11-09 19:48:24,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:24,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:48:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 2330 proven. 438 refuted. 0 times theorem prover too weak. 1186 trivial. 0 not checked. [2024-11-09 19:48:26,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:48:26,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059067775] [2024-11-09 19:48:26,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059067775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:48:26,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215758909] [2024-11-09 19:48:26,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:48:26,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:48:26,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:48:26,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:48:26,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:48:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:48:26,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:48:26,479 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:48:27,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 2330 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-09 19:48:27,066 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:48:27,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215758909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:48:27,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:48:27,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-09 19:48:27,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214302707] [2024-11-09 19:48:27,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:48:27,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:48:27,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:48:27,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:48:27,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:48:27,068 INFO L87 Difference]: Start difference. First operand 13865 states and 25460 transitions. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:27,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:48:27,937 INFO L93 Difference]: Finished difference Result 27065 states and 49726 transitions. [2024-11-09 19:48:27,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:48:27,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 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 1541 [2024-11-09 19:48:27,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:48:27,938 INFO L225 Difference]: With dead ends: 27065 [2024-11-09 19:48:27,938 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 19:48:27,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1546 GetRequests, 1541 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:48:27,947 INFO L432 NwaCegarLoop]: 633 mSDtfsCounter, 355 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:48:27,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 639 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:48:27,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 19:48:27,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 19:48:27,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 19:48:27,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1541 [2024-11-09 19:48:27,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:48:27,948 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 19:48:27,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:48:27,949 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 19:48:27,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 19:48:27,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 19:48:27,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:48:28,152 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,SelfDestructingSolverStorable17 [2024-11-09 19:48:28,154 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:48:28,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 19:48:28,645 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 19:48:28,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:48:28 BoogieIcfgContainer [2024-11-09 19:48:28,656 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 19:48:28,656 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 19:48:28,656 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 19:48:28,656 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 19:48:28,656 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:47:51" (3/4) ... [2024-11-09 19:48:28,658 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 19:48:28,681 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 19:48:28,683 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 19:48:28,686 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 19:48:28,688 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 19:48:28,870 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 19:48:28,870 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 19:48:28,870 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 19:48:28,871 INFO L158 Benchmark]: Toolchain (without parser) took 40664.85ms. Allocated memory was 172.0MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 99.1MB in the beginning and 660.1MB in the end (delta: -561.0MB). Peak memory consumption was 991.4MB. Max. memory is 16.1GB. [2024-11-09 19:48:28,871 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 19:48:28,871 INFO L158 Benchmark]: CACSL2BoogieTranslator took 633.96ms. Allocated memory is still 172.0MB. Free memory was 98.9MB in the beginning and 96.4MB in the end (delta: 2.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 19:48:28,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.49ms. Allocated memory is still 172.0MB. Free memory was 96.4MB in the beginning and 72.8MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 19:48:28,872 INFO L158 Benchmark]: Boogie Preprocessor took 178.93ms. Allocated memory is still 172.0MB. Free memory was 72.8MB in the beginning and 115.4MB in the end (delta: -42.6MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2024-11-09 19:48:28,872 INFO L158 Benchmark]: IcfgBuilder took 2057.79ms. Allocated memory was 172.0MB in the beginning and 264.2MB in the end (delta: 92.3MB). Free memory was 115.4MB in the beginning and 157.2MB in the end (delta: -41.8MB). Peak memory consumption was 115.1MB. Max. memory is 16.1GB. [2024-11-09 19:48:28,873 INFO L158 Benchmark]: TraceAbstraction took 37468.11ms. Allocated memory was 264.2MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 156.1MB in the beginning and 702.0MB in the end (delta: -545.9MB). Peak memory consumption was 912.7MB. Max. memory is 16.1GB. [2024-11-09 19:48:28,875 INFO L158 Benchmark]: Witness Printer took 214.59ms. Allocated memory is still 1.7GB. Free memory was 702.0MB in the beginning and 660.1MB in the end (delta: 41.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 19:48:28,875 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 633.96ms. Allocated memory is still 172.0MB. Free memory was 98.9MB in the beginning and 96.4MB in the end (delta: 2.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.49ms. Allocated memory is still 172.0MB. Free memory was 96.4MB in the beginning and 72.8MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 178.93ms. Allocated memory is still 172.0MB. Free memory was 72.8MB in the beginning and 115.4MB in the end (delta: -42.6MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * IcfgBuilder took 2057.79ms. Allocated memory was 172.0MB in the beginning and 264.2MB in the end (delta: 92.3MB). Free memory was 115.4MB in the beginning and 157.2MB in the end (delta: -41.8MB). Peak memory consumption was 115.1MB. Max. memory is 16.1GB. * TraceAbstraction took 37468.11ms. Allocated memory was 264.2MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 156.1MB in the beginning and 702.0MB in the end (delta: -545.9MB). Peak memory consumption was 912.7MB. Max. memory is 16.1GB. * Witness Printer took 214.59ms. Allocated memory is still 1.7GB. Free memory was 702.0MB in the beginning and 660.1MB in the end (delta: 41.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 140]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 399 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 36.9s, OverallIterations: 18, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 22.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8905 SdHoareTripleChecker+Valid, 21.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8905 mSDsluCounter, 6782 SdHoareTripleChecker+Invalid, 17.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 576 mSDsCounter, 2549 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31497 IncrementalHoareTripleChecker+Invalid, 34046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2549 mSolverCounterUnsat, 6206 mSDtfsCounter, 31497 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2152 GetRequests, 2111 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13865occurred in iteration=17, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 18 MinimizatonAttempts, 5620 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 14911 NumberOfCodeBlocks, 14911 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 14891 ConstructedInterpolants, 0 QuantifiedInterpolants, 38817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2398 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 20 InterpolantComputations, 18 PerfectInterpolantSequences, 29062/29566 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1783]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 19:48:28,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE