./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem19_label40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem19_label40.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 e138a285e39cee370658c394a82aa6106f1f1589e50dc2e37a5e2dc34c4d4ddf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:30:55,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:30:55,175 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:30:55,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:30:55,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:30:55,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:30:55,211 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:30:55,212 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:30:55,213 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:30:55,214 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:30:55,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:30:55,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:30:55,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:30:55,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:30:55,217 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:30:55,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:30:55,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:30:55,217 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:30:55,217 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:30:55,218 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:30:55,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:30:55,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:30:55,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:30:55,220 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:30:55,221 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:30:55,221 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:30:55,221 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:30:55,221 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:30:55,221 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:30:55,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:30:55,222 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:30:55,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:30:55,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:30:55,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:30:55,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:30:55,223 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:30:55,223 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:30:55,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:30:55,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:30:55,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:30:55,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:30:55,225 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:30:55,225 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e138a285e39cee370658c394a82aa6106f1f1589e50dc2e37a5e2dc34c4d4ddf [2024-11-16 04:30:55,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:30:55,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:30:55,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:30:55,461 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:30:55,461 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:30:55,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem19_label40.c [2024-11-16 04:30:56,814 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:30:57,327 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:30:57,328 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label40.c [2024-11-16 04:30:57,360 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98a07cb4/96b3a341a092469f8a4fe581d7fbee2c/FLAGfc5a74602 [2024-11-16 04:30:57,373 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98a07cb4/96b3a341a092469f8a4fe581d7fbee2c [2024-11-16 04:30:57,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:30:57,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:30:57,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:30:57,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:30:57,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:30:57,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:30:57" (1/1) ... [2024-11-16 04:30:57,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c57785c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:57, skipping insertion in model container [2024-11-16 04:30:57,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:30:57" (1/1) ... [2024-11-16 04:30:57,503 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:30:57,790 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/Problem19_label40.c[6144,6157] [2024-11-16 04:30:58,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:30:58,859 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:30:58,892 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/Problem19_label40.c[6144,6157] [2024-11-16 04:30:59,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:30:59,440 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:30:59,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59 WrapperNode [2024-11-16 04:30:59,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:30:59,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:30:59,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:30:59,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:30:59,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59" (1/1) ... [2024-11-16 04:30:59,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59" (1/1) ... [2024-11-16 04:31:00,204 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9430 [2024-11-16 04:31:00,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:31:00,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:31:00,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:31:00,205 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:31:00,214 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59" (1/1) ... [2024-11-16 04:31:00,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59" (1/1) ... [2024-11-16 04:31:00,501 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59" (1/1) ... [2024-11-16 04:31:00,760 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 04:31:00,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59" (1/1) ... [2024-11-16 04:31:00,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59" (1/1) ... [2024-11-16 04:31:01,061 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59" (1/1) ... [2024-11-16 04:31:01,083 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59" (1/1) ... [2024-11-16 04:31:01,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59" (1/1) ... [2024-11-16 04:31:01,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59" (1/1) ... [2024-11-16 04:31:01,308 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:31:01,316 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:31:01,316 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:31:01,316 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:31:01,317 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59" (1/1) ... [2024-11-16 04:31:01,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:31:01,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:31:01,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 04:31:01,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 04:31:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:31:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:31:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:31:01,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:31:01,471 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:31:01,473 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:31:07,387 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6717: havoc calculate_output4_#t~ret14#1; [2024-11-16 04:31:07,388 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3435: havoc calculate_output2_#t~ret12#1; [2024-11-16 04:31:07,390 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1859: havoc calculate_output_#t~ret11#1; [2024-11-16 04:31:07,390 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8350: havoc calculate_output5_#t~ret15#1; [2024-11-16 04:31:07,390 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5079: havoc calculate_output3_#t~ret13#1; [2024-11-16 04:31:07,589 INFO L? ?]: Removed 1320 outVars from TransFormulas that were not future-live. [2024-11-16 04:31:07,590 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:31:07,631 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:31:07,632 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:31:07,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:31:07 BoogieIcfgContainer [2024-11-16 04:31:07,633 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:31:07,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:31:07,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:31:07,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:31:07,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:30:57" (1/3) ... [2024-11-16 04:31:07,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591aa2b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:31:07, skipping insertion in model container [2024-11-16 04:31:07,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:59" (2/3) ... [2024-11-16 04:31:07,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591aa2b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:31:07, skipping insertion in model container [2024-11-16 04:31:07,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:31:07" (3/3) ... [2024-11-16 04:31:07,641 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label40.c [2024-11-16 04:31:07,656 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:31:07,656 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:31:07,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:31:07,746 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;@25d49f83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:31:07,746 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:31:07,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 1751 states, 1749 states have (on average 1.8684962835906231) internal successors, (3268), 1750 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:07,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-16 04:31:07,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:31:07,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:31:07,760 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:31:07,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:31:07,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1447962052, now seen corresponding path program 1 times [2024-11-16 04:31:07,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:31:07,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755604582] [2024-11-16 04:31:07,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:31:07,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:31:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:31:08,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:31:08,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:31:08,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755604582] [2024-11-16 04:31:08,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755604582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:31:08,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:31:08,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:31:08,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140309860] [2024-11-16 04:31:08,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:31:08,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:31:08,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:31:08,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:31:08,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:31:08,036 INFO L87 Difference]: Start difference. First operand has 1751 states, 1749 states have (on average 1.8684962835906231) internal successors, (3268), 1750 states have internal predecessors, (3268), 0 states have call successors, (0), 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 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:13,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:31:13,499 INFO L93 Difference]: Finished difference Result 4925 states and 9319 transitions. [2024-11-16 04:31:13,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:31:13,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-11-16 04:31:13,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:31:13,532 INFO L225 Difference]: With dead ends: 4925 [2024-11-16 04:31:13,532 INFO L226 Difference]: Without dead ends: 3110 [2024-11-16 04:31:13,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:31:13,542 INFO L432 NwaCegarLoop]: 1279 mSDtfsCounter, 1507 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 4638 mSolverCounterSat, 1110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 5748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1110 IncrementalHoareTripleChecker+Valid, 4638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:31:13,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1462 Invalid, 5748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1110 Valid, 4638 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-16 04:31:13,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2024-11-16 04:31:13,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 3109. [2024-11-16 04:31:13,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3108 states have (on average 1.6521879021879022) internal successors, (5135), 3108 states have internal predecessors, (5135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:13,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 5135 transitions. [2024-11-16 04:31:13,673 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 5135 transitions. Word has length 48 [2024-11-16 04:31:13,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:31:13,675 INFO L471 AbstractCegarLoop]: Abstraction has 3109 states and 5135 transitions. [2024-11-16 04:31:13,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:13,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 5135 transitions. [2024-11-16 04:31:13,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 04:31:13,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:31:13,680 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:31:13,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:31:13,680 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:31:13,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:31:13,681 INFO L85 PathProgramCache]: Analyzing trace with hash -644486598, now seen corresponding path program 1 times [2024-11-16 04:31:13,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:31:13,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683049942] [2024-11-16 04:31:13,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:31:13,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:31:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:31:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:31:13,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:31:13,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683049942] [2024-11-16 04:31:13,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683049942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:31:13,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:31:13,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:31:13,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101813675] [2024-11-16 04:31:13,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:31:13,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:31:13,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:31:13,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:31:13,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:31:13,887 INFO L87 Difference]: Start difference. First operand 3109 states and 5135 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:19,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:31:19,851 INFO L93 Difference]: Finished difference Result 9106 states and 15093 transitions. [2024-11-16 04:31:19,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:31:19,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-16 04:31:19,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:31:19,869 INFO L225 Difference]: With dead ends: 9106 [2024-11-16 04:31:19,869 INFO L226 Difference]: Without dead ends: 5999 [2024-11-16 04:31:19,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:31:19,874 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 2534 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 5120 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2534 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 5554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 5120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:31:19,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2534 Valid, 994 Invalid, 5554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 5120 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-16 04:31:19,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2024-11-16 04:31:19,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 5996. [2024-11-16 04:31:19,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5996 states, 5995 states have (on average 1.605671392827356) internal successors, (9626), 5995 states have internal predecessors, (9626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5996 states to 5996 states and 9626 transitions. [2024-11-16 04:31:19,974 INFO L78 Accepts]: Start accepts. Automaton has 5996 states and 9626 transitions. Word has length 118 [2024-11-16 04:31:19,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:31:19,974 INFO L471 AbstractCegarLoop]: Abstraction has 5996 states and 9626 transitions. [2024-11-16 04:31:19,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:19,975 INFO L276 IsEmpty]: Start isEmpty. Operand 5996 states and 9626 transitions. [2024-11-16 04:31:19,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 04:31:19,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:31:19,977 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:31:19,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:31:19,978 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:31:19,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:31:19,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1525888972, now seen corresponding path program 1 times [2024-11-16 04:31:19,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:31:19,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118558424] [2024-11-16 04:31:19,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:31:19,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:31:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:31:20,205 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:31:20,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:31:20,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118558424] [2024-11-16 04:31:20,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118558424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:31:20,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:31:20,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:31:20,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039077191] [2024-11-16 04:31:20,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:31:20,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:31:20,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:31:20,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:31:20,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:31:20,208 INFO L87 Difference]: Start difference. First operand 5996 states and 9626 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:26,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:31:26,185 INFO L93 Difference]: Finished difference Result 17573 states and 28322 transitions. [2024-11-16 04:31:26,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:31:26,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-16 04:31:26,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:31:26,216 INFO L225 Difference]: With dead ends: 17573 [2024-11-16 04:31:26,216 INFO L226 Difference]: Without dead ends: 11579 [2024-11-16 04:31:26,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:31:26,227 INFO L432 NwaCegarLoop]: 1566 mSDtfsCounter, 1447 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 4825 mSolverCounterSat, 1045 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 5870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1045 IncrementalHoareTripleChecker+Valid, 4825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:31:26,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 1734 Invalid, 5870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1045 Valid, 4825 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-16 04:31:26,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11579 states. [2024-11-16 04:31:26,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11579 to 11526. [2024-11-16 04:31:26,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11526 states, 11525 states have (on average 1.4295010845986984) internal successors, (16475), 11525 states have internal predecessors, (16475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:26,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11526 states to 11526 states and 16475 transitions. [2024-11-16 04:31:26,420 INFO L78 Accepts]: Start accepts. Automaton has 11526 states and 16475 transitions. Word has length 123 [2024-11-16 04:31:26,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:31:26,420 INFO L471 AbstractCegarLoop]: Abstraction has 11526 states and 16475 transitions. [2024-11-16 04:31:26,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:26,420 INFO L276 IsEmpty]: Start isEmpty. Operand 11526 states and 16475 transitions. [2024-11-16 04:31:26,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 04:31:26,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:31:26,422 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:31:26,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:31:26,423 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:31:26,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:31:26,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1909581376, now seen corresponding path program 1 times [2024-11-16 04:31:26,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:31:26,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608376099] [2024-11-16 04:31:26,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:31:26,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:31:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:31:26,602 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:31:26,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:31:26,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608376099] [2024-11-16 04:31:26,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608376099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:31:26,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:31:26,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:31:26,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141573188] [2024-11-16 04:31:26,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:31:26,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:31:26,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:31:26,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:31:26,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:31:26,606 INFO L87 Difference]: Start difference. First operand 11526 states and 16475 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:32,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:31:32,625 INFO L93 Difference]: Finished difference Result 34195 states and 48944 transitions. [2024-11-16 04:31:32,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:31:32,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-16 04:31:32,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:31:32,664 INFO L225 Difference]: With dead ends: 34195 [2024-11-16 04:31:32,664 INFO L226 Difference]: Without dead ends: 22671 [2024-11-16 04:31:32,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:31:32,680 INFO L432 NwaCegarLoop]: 1806 mSDtfsCounter, 1749 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 4312 mSolverCounterSat, 1430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 5742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1430 IncrementalHoareTripleChecker+Valid, 4312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:31:32,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1749 Valid, 2080 Invalid, 5742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1430 Valid, 4312 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-16 04:31:32,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22671 states. [2024-11-16 04:31:32,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22671 to 22653. [2024-11-16 04:31:32,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22653 states, 22652 states have (on average 1.2714550591559244) internal successors, (28801), 22652 states have internal predecessors, (28801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:32,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22653 states to 22653 states and 28801 transitions. [2024-11-16 04:31:32,930 INFO L78 Accepts]: Start accepts. Automaton has 22653 states and 28801 transitions. Word has length 146 [2024-11-16 04:31:32,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:31:32,931 INFO L471 AbstractCegarLoop]: Abstraction has 22653 states and 28801 transitions. [2024-11-16 04:31:32,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 22653 states and 28801 transitions. [2024-11-16 04:31:32,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-16 04:31:32,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:31:32,933 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:31:32,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:31:32,933 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:31:32,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:31:32,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1759232774, now seen corresponding path program 1 times [2024-11-16 04:31:32,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:31:32,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111144042] [2024-11-16 04:31:32,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:31:32,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:31:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:31:33,040 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:31:33,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:31:33,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111144042] [2024-11-16 04:31:33,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111144042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:31:33,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:31:33,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:31:33,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445979116] [2024-11-16 04:31:33,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:31:33,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:31:33,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:31:33,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:31:33,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:31:33,043 INFO L87 Difference]: Start difference. First operand 22653 states and 28801 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 2 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:38,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:31:38,822 INFO L93 Difference]: Finished difference Result 67305 states and 85571 transitions. [2024-11-16 04:31:38,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:31:38,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 2 states have internal predecessors, (187), 0 states have call successors, (0), 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 187 [2024-11-16 04:31:38,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:31:38,883 INFO L225 Difference]: With dead ends: 67305 [2024-11-16 04:31:38,883 INFO L226 Difference]: Without dead ends: 44654 [2024-11-16 04:31:38,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:31:38,912 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 1470 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 4396 mSolverCounterSat, 1424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 5820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1424 IncrementalHoareTripleChecker+Valid, 4396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:31:38,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 1890 Invalid, 5820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1424 Valid, 4396 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-16 04:31:38,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44654 states. [2024-11-16 04:31:39,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44654 to 44601. [2024-11-16 04:31:39,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44601 states, 44600 states have (on average 1.177982062780269) internal successors, (52538), 44600 states have internal predecessors, (52538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:39,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44601 states to 44601 states and 52538 transitions. [2024-11-16 04:31:39,354 INFO L78 Accepts]: Start accepts. Automaton has 44601 states and 52538 transitions. Word has length 187 [2024-11-16 04:31:39,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:31:39,355 INFO L471 AbstractCegarLoop]: Abstraction has 44601 states and 52538 transitions. [2024-11-16 04:31:39,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 2 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:39,355 INFO L276 IsEmpty]: Start isEmpty. Operand 44601 states and 52538 transitions. [2024-11-16 04:31:39,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-16 04:31:39,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:31:39,357 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:31:39,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:31:39,357 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:31:39,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:31:39,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1882696243, now seen corresponding path program 1 times [2024-11-16 04:31:39,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:31:39,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078360315] [2024-11-16 04:31:39,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:31:39,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:31:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:31:39,549 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:31:39,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:31:39,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078360315] [2024-11-16 04:31:39,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078360315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:31:39,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:31:39,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:31:39,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2290885] [2024-11-16 04:31:39,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:31:39,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:31:39,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:31:39,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:31:39,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:31:39,552 INFO L87 Difference]: Start difference. First operand 44601 states and 52538 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:44,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:31:44,884 INFO L93 Difference]: Finished difference Result 106984 states and 127932 transitions. [2024-11-16 04:31:44,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:31:44,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 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 256 [2024-11-16 04:31:44,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:31:44,964 INFO L225 Difference]: With dead ends: 106984 [2024-11-16 04:31:44,964 INFO L226 Difference]: Without dead ends: 62383 [2024-11-16 04:31:45,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:31:45,003 INFO L432 NwaCegarLoop]: 3091 mSDtfsCounter, 1434 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 3732 mSolverCounterSat, 1895 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 3283 SdHoareTripleChecker+Invalid, 5627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1895 IncrementalHoareTripleChecker+Valid, 3732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:31:45,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 3283 Invalid, 5627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1895 Valid, 3732 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-16 04:31:45,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62383 states. [2024-11-16 04:31:45,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62383 to 62372. [2024-11-16 04:31:45,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62372 states, 62371 states have (on average 1.1419730323387471) internal successors, (71226), 62371 states have internal predecessors, (71226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:45,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62372 states to 62372 states and 71226 transitions. [2024-11-16 04:31:45,769 INFO L78 Accepts]: Start accepts. Automaton has 62372 states and 71226 transitions. Word has length 256 [2024-11-16 04:31:45,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:31:45,770 INFO L471 AbstractCegarLoop]: Abstraction has 62372 states and 71226 transitions. [2024-11-16 04:31:45,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:45,771 INFO L276 IsEmpty]: Start isEmpty. Operand 62372 states and 71226 transitions. [2024-11-16 04:31:45,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-16 04:31:45,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:31:45,778 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:31:45,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:31:45,779 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:31:45,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:31:45,779 INFO L85 PathProgramCache]: Analyzing trace with hash -538899878, now seen corresponding path program 1 times [2024-11-16 04:31:45,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:31:45,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179854879] [2024-11-16 04:31:45,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:31:45,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:31:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:31:46,814 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-16 04:31:46,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:31:46,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179854879] [2024-11-16 04:31:46,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179854879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:31:46,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:31:46,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:31:46,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373564439] [2024-11-16 04:31:46,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:31:46,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:31:46,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:31:46,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:31:46,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:31:46,817 INFO L87 Difference]: Start difference. First operand 62372 states and 71226 transitions. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:54,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:31:54,411 INFO L93 Difference]: Finished difference Result 149413 states and 169126 transitions. [2024-11-16 04:31:54,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:31:54,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 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 476 [2024-11-16 04:31:54,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:31:54,548 INFO L225 Difference]: With dead ends: 149413 [2024-11-16 04:31:54,549 INFO L226 Difference]: Without dead ends: 88409 [2024-11-16 04:31:54,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:31:54,611 INFO L432 NwaCegarLoop]: 1800 mSDtfsCounter, 3763 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 9421 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3763 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 9688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 9421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:31:54,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3763 Valid, 2162 Invalid, 9688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 9421 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-16 04:31:54,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88409 states. [2024-11-16 04:31:55,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88409 to 86997. [2024-11-16 04:31:55,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86997 states, 86996 states have (on average 1.1148558554416295) internal successors, (96988), 86996 states have internal predecessors, (96988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:56,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86997 states to 86997 states and 96988 transitions. [2024-11-16 04:31:56,094 INFO L78 Accepts]: Start accepts. Automaton has 86997 states and 96988 transitions. Word has length 476 [2024-11-16 04:31:56,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:31:56,094 INFO L471 AbstractCegarLoop]: Abstraction has 86997 states and 96988 transitions. [2024-11-16 04:31:56,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:31:56,095 INFO L276 IsEmpty]: Start isEmpty. Operand 86997 states and 96988 transitions. [2024-11-16 04:31:56,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2024-11-16 04:31:56,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:31:56,102 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:31:56,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:31:56,103 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:31:56,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:31:56,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1776745748, now seen corresponding path program 1 times [2024-11-16 04:31:56,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:31:56,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886333141] [2024-11-16 04:31:56,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:31:56,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:31:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:31:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 04:31:57,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:31:57,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886333141] [2024-11-16 04:31:57,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886333141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:31:57,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:31:57,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:31:57,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144326248] [2024-11-16 04:31:57,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:31:57,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:31:57,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:31:57,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:31:57,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:31:57,055 INFO L87 Difference]: Start difference. First operand 86997 states and 96988 transitions. Second operand has 4 states, 4 states have (on average 121.75) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:03,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:03,377 INFO L93 Difference]: Finished difference Result 174024 states and 194012 transitions. [2024-11-16 04:32:03,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:32:03,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.75) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 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 504 [2024-11-16 04:32:03,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:03,496 INFO L225 Difference]: With dead ends: 174024 [2024-11-16 04:32:03,496 INFO L226 Difference]: Without dead ends: 88363 [2024-11-16 04:32:03,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:32:03,536 INFO L432 NwaCegarLoop]: 1772 mSDtfsCounter, 1138 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 7313 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2118 SdHoareTripleChecker+Invalid, 7321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 7313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:03,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 2118 Invalid, 7321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 7313 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-16 04:32:03,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88363 states. [2024-11-16 04:32:04,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88363 to 88363. [2024-11-16 04:32:04,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88363 states, 88362 states have (on average 1.1130689662977298) internal successors, (98353), 88362 states have internal predecessors, (98353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:05,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88363 states to 88363 states and 98353 transitions. [2024-11-16 04:32:05,025 INFO L78 Accepts]: Start accepts. Automaton has 88363 states and 98353 transitions. Word has length 504 [2024-11-16 04:32:05,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:05,026 INFO L471 AbstractCegarLoop]: Abstraction has 88363 states and 98353 transitions. [2024-11-16 04:32:05,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.75) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:05,030 INFO L276 IsEmpty]: Start isEmpty. Operand 88363 states and 98353 transitions. [2024-11-16 04:32:05,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-16 04:32:05,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:05,040 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:32:05,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:32:05,040 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:05,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:05,040 INFO L85 PathProgramCache]: Analyzing trace with hash -363888432, now seen corresponding path program 1 times [2024-11-16 04:32:05,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:05,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634369674] [2024-11-16 04:32:05,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:05,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:05,498 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-16 04:32:05,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:05,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634369674] [2024-11-16 04:32:05,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634369674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:05,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:05,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:32:05,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888816976] [2024-11-16 04:32:05,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:05,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:32:05,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:05,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:32:05,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:05,505 INFO L87 Difference]: Start difference. First operand 88363 states and 98353 transitions. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 2 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:11,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:11,208 INFO L93 Difference]: Finished difference Result 193145 states and 215614 transitions. [2024-11-16 04:32:11,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:32:11,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 2 states have internal predecessors, (538), 0 states have call successors, (0), 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 622 [2024-11-16 04:32:11,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:11,334 INFO L225 Difference]: With dead ends: 193145 [2024-11-16 04:32:11,334 INFO L226 Difference]: Without dead ends: 107516 [2024-11-16 04:32:11,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:11,365 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 1387 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 3925 mSolverCounterSat, 1668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 5593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1668 IncrementalHoareTripleChecker+Valid, 3925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:11,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 754 Invalid, 5593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1668 Valid, 3925 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-16 04:32:11,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107516 states. [2024-11-16 04:32:12,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107516 to 107493. [2024-11-16 04:32:12,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107493 states, 107492 states have (on average 1.0961094779146354) internal successors, (117823), 107492 states have internal predecessors, (117823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:12,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107493 states to 107493 states and 117823 transitions. [2024-11-16 04:32:12,586 INFO L78 Accepts]: Start accepts. Automaton has 107493 states and 117823 transitions. Word has length 622 [2024-11-16 04:32:12,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:12,587 INFO L471 AbstractCegarLoop]: Abstraction has 107493 states and 117823 transitions. [2024-11-16 04:32:12,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 2 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:12,587 INFO L276 IsEmpty]: Start isEmpty. Operand 107493 states and 117823 transitions. [2024-11-16 04:32:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2024-11-16 04:32:12,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:12,592 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:32:12,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:32:12,593 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:12,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:12,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1372554693, now seen corresponding path program 1 times [2024-11-16 04:32:12,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:12,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98754428] [2024-11-16 04:32:12,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:12,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:15,386 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 89 proven. 219 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:32:15,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:15,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98754428] [2024-11-16 04:32:15,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98754428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:32:15,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029132281] [2024-11-16 04:32:15,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:15,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:32:15,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:32:15,389 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:32:15,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:32:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:15,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:32:15,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:32:15,693 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-16 04:32:15,694 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:32:15,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029132281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:15,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:32:15,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-16 04:32:15,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068177269] [2024-11-16 04:32:15,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:15,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:32:15,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:15,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:32:15,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 04:32:15,696 INFO L87 Difference]: Start difference. First operand 107493 states and 117823 transitions. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:22,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:22,568 INFO L93 Difference]: Finished difference Result 264297 states and 292204 transitions. [2024-11-16 04:32:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:32:22,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 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 756 [2024-11-16 04:32:22,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:22,756 INFO L225 Difference]: With dead ends: 264297 [2024-11-16 04:32:22,756 INFO L226 Difference]: Without dead ends: 159538 [2024-11-16 04:32:22,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 755 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 04:32:22,804 INFO L432 NwaCegarLoop]: 3212 mSDtfsCounter, 1430 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 5094 mSolverCounterSat, 988 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 3387 SdHoareTripleChecker+Invalid, 6082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 988 IncrementalHoareTripleChecker+Valid, 5094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:22,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1430 Valid, 3387 Invalid, 6082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [988 Valid, 5094 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-16 04:32:22,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159538 states. [2024-11-16 04:32:24,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159538 to 155324. [2024-11-16 04:32:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155324 states, 155323 states have (on average 1.0853061040541323) internal successors, (168573), 155323 states have internal predecessors, (168573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:24,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155324 states to 155324 states and 168573 transitions. [2024-11-16 04:32:24,530 INFO L78 Accepts]: Start accepts. Automaton has 155324 states and 168573 transitions. Word has length 756 [2024-11-16 04:32:24,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:24,532 INFO L471 AbstractCegarLoop]: Abstraction has 155324 states and 168573 transitions. [2024-11-16 04:32:24,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:24,532 INFO L276 IsEmpty]: Start isEmpty. Operand 155324 states and 168573 transitions. [2024-11-16 04:32:24,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2024-11-16 04:32:24,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:24,538 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:32:24,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 04:32:24,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 04:32:24,740 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:24,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:24,740 INFO L85 PathProgramCache]: Analyzing trace with hash -137140317, now seen corresponding path program 1 times [2024-11-16 04:32:24,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:24,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169437692] [2024-11-16 04:32:24,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:24,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:25,680 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-16 04:32:25,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:25,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169437692] [2024-11-16 04:32:25,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169437692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:25,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:25,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:32:25,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333796976] [2024-11-16 04:32:25,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:25,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:32:25,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:25,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:32:25,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:32:25,684 INFO L87 Difference]: Start difference. First operand 155324 states and 168573 transitions. Second operand has 4 states, 4 states have (on average 156.5) internal successors, (626), 4 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)