./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.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 ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 18:31:50,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 18:31:50,579 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 18:31:50,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 18:31:50,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 18:31:50,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 18:31:50,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 18:31:50,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 18:31:50,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 18:31:50,607 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 18:31:50,608 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 18:31:50,608 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 18:31:50,609 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 18:31:50,610 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 18:31:50,610 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 18:31:50,611 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 18:31:50,611 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 18:31:50,611 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 18:31:50,612 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 18:31:50,612 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 18:31:50,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 18:31:50,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 18:31:50,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 18:31:50,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 18:31:50,614 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 18:31:50,614 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 18:31:50,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 18:31:50,615 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 18:31:50,615 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 18:31:50,615 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 18:31:50,616 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 18:31:50,616 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 18:31:50,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 18:31:50,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 18:31:50,617 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 18:31:50,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 18:31:50,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 18:31:50,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 18:31:50,618 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 18:31:50,618 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 18:31:50,619 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 18:31:50,619 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 18:31:50,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e [2024-11-09 18:31:50,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 18:31:50,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 18:31:50,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 18:31:50,907 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 18:31:50,907 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 18:31:50,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2024-11-09 18:31:52,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 18:31:52,478 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 18:31:52,479 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2024-11-09 18:31:52,497 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd8bf919a/59eff7d2a58c456f914e1d477c95ed3a/FLAG8e9edba30 [2024-11-09 18:31:52,817 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd8bf919a/59eff7d2a58c456f914e1d477c95ed3a [2024-11-09 18:31:52,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 18:31:52,820 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 18:31:52,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 18:31:52,821 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 18:31:52,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 18:31:52,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:31:52" (1/1) ... [2024-11-09 18:31:52,826 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64a3ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:52, skipping insertion in model container [2024-11-09 18:31:52,826 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:31:52" (1/1) ... [2024-11-09 18:31:52,863 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 18:31:53,095 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/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2024-11-09 18:31:53,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 18:31:53,110 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 18:31:53,176 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/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2024-11-09 18:31:53,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 18:31:53,194 INFO L204 MainTranslator]: Completed translation [2024-11-09 18:31:53,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53 WrapperNode [2024-11-09 18:31:53,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 18:31:53,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 18:31:53,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 18:31:53,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 18:31:53,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53" (1/1) ... [2024-11-09 18:31:53,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53" (1/1) ... [2024-11-09 18:31:53,241 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 528 [2024-11-09 18:31:53,242 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 18:31:53,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 18:31:53,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 18:31:53,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 18:31:53,253 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53" (1/1) ... [2024-11-09 18:31:53,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53" (1/1) ... [2024-11-09 18:31:53,256 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53" (1/1) ... [2024-11-09 18:31:53,273 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 18:31:53,273 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53" (1/1) ... [2024-11-09 18:31:53,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53" (1/1) ... [2024-11-09 18:31:53,281 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53" (1/1) ... [2024-11-09 18:31:53,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53" (1/1) ... [2024-11-09 18:31:53,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53" (1/1) ... [2024-11-09 18:31:53,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53" (1/1) ... [2024-11-09 18:31:53,294 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 18:31:53,295 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 18:31:53,295 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 18:31:53,295 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 18:31:53,296 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53" (1/1) ... [2024-11-09 18:31:53,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 18:31:53,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:31:53,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 18:31:53,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 18:31:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 18:31:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 18:31:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 18:31:53,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 18:31:53,525 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 18:31:53,533 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 18:31:54,093 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: assume false; [2024-11-09 18:31:54,094 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: assume !false; [2024-11-09 18:31:54,143 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-09 18:31:54,144 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 18:31:54,169 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 18:31:54,171 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 18:31:54,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:31:54 BoogieIcfgContainer [2024-11-09 18:31:54,172 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 18:31:54,174 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 18:31:54,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 18:31:54,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 18:31:54,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:31:52" (1/3) ... [2024-11-09 18:31:54,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dde52cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:31:54, skipping insertion in model container [2024-11-09 18:31:54,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:31:53" (2/3) ... [2024-11-09 18:31:54,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dde52cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:31:54, skipping insertion in model container [2024-11-09 18:31:54,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:31:54" (3/3) ... [2024-11-09 18:31:54,180 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2024-11-09 18:31:54,194 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 18:31:54,194 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 18:31:54,261 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 18:31:54,267 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;@2f605bf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 18:31:54,267 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 18:31:54,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 156 states have (on average 1.608974358974359) internal successors, (251), 157 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:54,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 18:31:54,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:54,279 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] [2024-11-09 18:31:54,279 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:54,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:54,283 INFO L85 PathProgramCache]: Analyzing trace with hash -771452129, now seen corresponding path program 1 times [2024-11-09 18:31:54,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:54,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976192352] [2024-11-09 18:31:54,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:54,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 18:31:54,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:54,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976192352] [2024-11-09 18:31:54,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976192352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:54,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:54,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:54,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151776587] [2024-11-09 18:31:54,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:54,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:54,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:54,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:54,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:54,587 INFO L87 Difference]: Start difference. First operand has 158 states, 156 states have (on average 1.608974358974359) internal successors, (251), 157 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:54,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:54,785 INFO L93 Difference]: Finished difference Result 309 states and 493 transitions. [2024-11-09 18:31:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:54,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-09 18:31:54,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:54,794 INFO L225 Difference]: With dead ends: 309 [2024-11-09 18:31:54,794 INFO L226 Difference]: Without dead ends: 142 [2024-11-09 18:31:54,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:54,800 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 7 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:54,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 378 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 18:31:54,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-09 18:31:54,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-09 18:31:54,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.446808510638298) internal successors, (204), 141 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:54,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 204 transitions. [2024-11-09 18:31:54,837 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 204 transitions. Word has length 27 [2024-11-09 18:31:54,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:54,837 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 204 transitions. [2024-11-09 18:31:54,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:54,838 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 204 transitions. [2024-11-09 18:31:54,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 18:31:54,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:54,840 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 18:31:54,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 18:31:54,840 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:54,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:54,841 INFO L85 PathProgramCache]: Analyzing trace with hash 734862021, now seen corresponding path program 1 times [2024-11-09 18:31:54,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:54,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275944503] [2024-11-09 18:31:54,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:54,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:54,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 18:31:54,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:54,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275944503] [2024-11-09 18:31:54,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275944503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:54,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:54,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:54,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346925880] [2024-11-09 18:31:54,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:54,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:54,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:54,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:54,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:54,981 INFO L87 Difference]: Start difference. First operand 142 states and 204 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:55,149 INFO L93 Difference]: Finished difference Result 289 states and 419 transitions. [2024-11-09 18:31:55,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:55,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-09 18:31:55,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:55,152 INFO L225 Difference]: With dead ends: 289 [2024-11-09 18:31:55,152 INFO L226 Difference]: Without dead ends: 158 [2024-11-09 18:31:55,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:55,154 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 9 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:55,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 298 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 18:31:55,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-09 18:31:55,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-09 18:31:55,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.4331210191082802) internal successors, (225), 157 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 225 transitions. [2024-11-09 18:31:55,165 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 225 transitions. Word has length 43 [2024-11-09 18:31:55,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:55,166 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 225 transitions. [2024-11-09 18:31:55,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,166 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 225 transitions. [2024-11-09 18:31:55,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 18:31:55,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:55,168 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:31:55,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 18:31:55,169 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:55,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:55,170 INFO L85 PathProgramCache]: Analyzing trace with hash 727297202, now seen corresponding path program 1 times [2024-11-09 18:31:55,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:55,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800274869] [2024-11-09 18:31:55,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:55,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:55,302 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 18:31:55,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:55,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800274869] [2024-11-09 18:31:55,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800274869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:55,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:55,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:55,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063598371] [2024-11-09 18:31:55,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:55,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:55,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:55,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:55,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:55,306 INFO L87 Difference]: Start difference. First operand 158 states and 225 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:55,446 INFO L93 Difference]: Finished difference Result 323 states and 465 transitions. [2024-11-09 18:31:55,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:55,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 59 [2024-11-09 18:31:55,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:55,448 INFO L225 Difference]: With dead ends: 323 [2024-11-09 18:31:55,450 INFO L226 Difference]: Without dead ends: 176 [2024-11-09 18:31:55,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:55,451 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 10 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:55,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 312 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:31:55,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-09 18:31:55,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-09 18:31:55,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 1.417142857142857) internal successors, (248), 175 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 248 transitions. [2024-11-09 18:31:55,465 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 248 transitions. Word has length 59 [2024-11-09 18:31:55,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:55,465 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 248 transitions. [2024-11-09 18:31:55,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,465 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 248 transitions. [2024-11-09 18:31:55,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 18:31:55,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:55,472 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 18:31:55,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 18:31:55,472 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:55,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:55,474 INFO L85 PathProgramCache]: Analyzing trace with hash 893740678, now seen corresponding path program 1 times [2024-11-09 18:31:55,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:55,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496506921] [2024-11-09 18:31:55,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:55,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 18:31:55,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:55,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496506921] [2024-11-09 18:31:55,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496506921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:55,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:55,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:55,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984527807] [2024-11-09 18:31:55,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:55,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:55,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:55,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:55,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:55,646 INFO L87 Difference]: Start difference. First operand 176 states and 248 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:55,687 INFO L93 Difference]: Finished difference Result 502 states and 709 transitions. [2024-11-09 18:31:55,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:55,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 80 [2024-11-09 18:31:55,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:55,691 INFO L225 Difference]: With dead ends: 502 [2024-11-09 18:31:55,692 INFO L226 Difference]: Without dead ends: 337 [2024-11-09 18:31:55,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:55,695 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 152 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:55,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 428 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:31:55,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-09 18:31:55,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2024-11-09 18:31:55,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 336 states have (on average 1.4017857142857142) internal successors, (471), 336 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 471 transitions. [2024-11-09 18:31:55,714 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 471 transitions. Word has length 80 [2024-11-09 18:31:55,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:55,715 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 471 transitions. [2024-11-09 18:31:55,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,715 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 471 transitions. [2024-11-09 18:31:55,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 18:31:55,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:55,718 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 18:31:55,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 18:31:55,718 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:55,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:55,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1290486924, now seen corresponding path program 1 times [2024-11-09 18:31:55,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:55,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027605965] [2024-11-09 18:31:55,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:55,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:55,772 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 18:31:55,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:55,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027605965] [2024-11-09 18:31:55,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027605965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:55,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:55,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:55,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272587933] [2024-11-09 18:31:55,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:55,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:55,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:55,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:55,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:55,775 INFO L87 Difference]: Start difference. First operand 337 states and 471 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:55,801 INFO L93 Difference]: Finished difference Result 686 states and 956 transitions. [2024-11-09 18:31:55,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:55,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-09 18:31:55,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:55,805 INFO L225 Difference]: With dead ends: 686 [2024-11-09 18:31:55,805 INFO L226 Difference]: Without dead ends: 360 [2024-11-09 18:31:55,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:55,810 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 11 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:55,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 404 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:31:55,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-09 18:31:55,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2024-11-09 18:31:55,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.392757660167131) internal successors, (500), 359 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 500 transitions. [2024-11-09 18:31:55,844 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 500 transitions. Word has length 81 [2024-11-09 18:31:55,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:55,844 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 500 transitions. [2024-11-09 18:31:55,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,845 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 500 transitions. [2024-11-09 18:31:55,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 18:31:55,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:55,851 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 18:31:55,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 18:31:55,852 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:55,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:55,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1282727565, now seen corresponding path program 1 times [2024-11-09 18:31:55,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:55,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437927252] [2024-11-09 18:31:55,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:55,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:55,919 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 18:31:55,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:55,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437927252] [2024-11-09 18:31:55,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437927252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:55,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:55,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:55,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37354155] [2024-11-09 18:31:55,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:55,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:55,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:55,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:55,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:55,924 INFO L87 Difference]: Start difference. First operand 360 states and 500 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:55,950 INFO L93 Difference]: Finished difference Result 740 states and 1023 transitions. [2024-11-09 18:31:55,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:55,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-09 18:31:55,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:55,953 INFO L225 Difference]: With dead ends: 740 [2024-11-09 18:31:55,953 INFO L226 Difference]: Without dead ends: 391 [2024-11-09 18:31:55,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:55,956 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 21 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:55,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 373 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:31:55,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-09 18:31:55,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-09 18:31:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 390 states have (on average 1.3794871794871795) internal successors, (538), 390 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) [2024-11-09 18:31:55,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 538 transitions. [2024-11-09 18:31:55,974 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 538 transitions. Word has length 81 [2024-11-09 18:31:55,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:55,975 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 538 transitions. [2024-11-09 18:31:55,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:55,975 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 538 transitions. [2024-11-09 18:31:55,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 18:31:55,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:55,977 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-09 18:31:55,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 18:31:55,977 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:55,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:55,981 INFO L85 PathProgramCache]: Analyzing trace with hash 289833505, now seen corresponding path program 1 times [2024-11-09 18:31:55,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:55,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679543379] [2024-11-09 18:31:55,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:55,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:56,065 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 18:31:56,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:56,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679543379] [2024-11-09 18:31:56,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679543379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:56,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:56,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:56,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259154560] [2024-11-09 18:31:56,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:56,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:56,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:56,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:56,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:56,070 INFO L87 Difference]: Start difference. First operand 391 states and 538 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:56,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:56,202 INFO L93 Difference]: Finished difference Result 784 states and 1100 transitions. [2024-11-09 18:31:56,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:56,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 101 [2024-11-09 18:31:56,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:56,205 INFO L225 Difference]: With dead ends: 784 [2024-11-09 18:31:56,205 INFO L226 Difference]: Without dead ends: 435 [2024-11-09 18:31:56,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:56,207 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 9 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:56,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 317 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:31:56,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-11-09 18:31:56,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2024-11-09 18:31:56,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 434 states have (on average 1.3640552995391706) internal successors, (592), 434 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:56,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 592 transitions. [2024-11-09 18:31:56,217 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 592 transitions. Word has length 101 [2024-11-09 18:31:56,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:56,218 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 592 transitions. [2024-11-09 18:31:56,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:56,218 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 592 transitions. [2024-11-09 18:31:56,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 18:31:56,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:56,220 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 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] [2024-11-09 18:31:56,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 18:31:56,220 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:56,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:56,221 INFO L85 PathProgramCache]: Analyzing trace with hash -533773663, now seen corresponding path program 1 times [2024-11-09 18:31:56,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:56,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292057329] [2024-11-09 18:31:56,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:56,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:56,321 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-09 18:31:56,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:56,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292057329] [2024-11-09 18:31:56,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292057329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:56,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:56,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:56,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256480967] [2024-11-09 18:31:56,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:56,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:56,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:56,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:56,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:56,323 INFO L87 Difference]: Start difference. First operand 435 states and 592 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:56,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:56,368 INFO L93 Difference]: Finished difference Result 622 states and 851 transitions. [2024-11-09 18:31:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:56,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 [2024-11-09 18:31:56,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:56,371 INFO L225 Difference]: With dead ends: 622 [2024-11-09 18:31:56,371 INFO L226 Difference]: Without dead ends: 619 [2024-11-09 18:31:56,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:56,373 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 168 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:56,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 363 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:31:56,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-09 18:31:56,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2024-11-09 18:31:56,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 618 states have (on average 1.372168284789644) internal successors, (848), 618 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:56,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 848 transitions. [2024-11-09 18:31:56,390 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 848 transitions. Word has length 123 [2024-11-09 18:31:56,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:56,390 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 848 transitions. [2024-11-09 18:31:56,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:56,390 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 848 transitions. [2024-11-09 18:31:56,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-09 18:31:56,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:56,392 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 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] [2024-11-09 18:31:56,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 18:31:56,392 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:56,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:56,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1501483717, now seen corresponding path program 1 times [2024-11-09 18:31:56,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:56,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112475281] [2024-11-09 18:31:56,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:56,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:56,484 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-09 18:31:56,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:56,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112475281] [2024-11-09 18:31:56,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112475281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:56,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:56,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:56,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880192060] [2024-11-09 18:31:56,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:56,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:56,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:56,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:56,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:56,490 INFO L87 Difference]: Start difference. First operand 619 states and 848 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:56,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:56,672 INFO L93 Difference]: Finished difference Result 1325 states and 1879 transitions. [2024-11-09 18:31:56,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:56,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2024-11-09 18:31:56,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:56,676 INFO L225 Difference]: With dead ends: 1325 [2024-11-09 18:31:56,676 INFO L226 Difference]: Without dead ends: 745 [2024-11-09 18:31:56,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:56,678 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 51 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:56,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 296 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 18:31:56,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2024-11-09 18:31:56,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 745. [2024-11-09 18:31:56,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 744 states have (on average 1.4099462365591398) internal successors, (1049), 744 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:56,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1049 transitions. [2024-11-09 18:31:56,697 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1049 transitions. Word has length 145 [2024-11-09 18:31:56,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:56,697 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 1049 transitions. [2024-11-09 18:31:56,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:56,697 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1049 transitions. [2024-11-09 18:31:56,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-09 18:31:56,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:56,701 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:31:56,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 18:31:56,702 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:56,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:56,702 INFO L85 PathProgramCache]: Analyzing trace with hash 2050594959, now seen corresponding path program 1 times [2024-11-09 18:31:56,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:56,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297428406] [2024-11-09 18:31:56,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:56,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-09 18:31:56,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:56,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297428406] [2024-11-09 18:31:56,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297428406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:56,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:56,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:56,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410313986] [2024-11-09 18:31:56,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:56,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:56,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:56,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:56,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:56,775 INFO L87 Difference]: Start difference. First operand 745 states and 1049 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:56,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:56,946 INFO L93 Difference]: Finished difference Result 1697 states and 2476 transitions. [2024-11-09 18:31:56,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:56,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2024-11-09 18:31:56,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:56,950 INFO L225 Difference]: With dead ends: 1697 [2024-11-09 18:31:56,950 INFO L226 Difference]: Without dead ends: 943 [2024-11-09 18:31:56,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:56,951 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 47 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:56,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 289 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 18:31:56,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-11-09 18:31:56,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 940. [2024-11-09 18:31:56,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 939 states have (on average 1.3919062832800853) internal successors, (1307), 939 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:56,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1307 transitions. [2024-11-09 18:31:56,973 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1307 transitions. Word has length 177 [2024-11-09 18:31:56,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:56,973 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1307 transitions. [2024-11-09 18:31:56,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:56,974 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1307 transitions. [2024-11-09 18:31:56,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-09 18:31:56,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:56,976 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:31:56,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 18:31:56,977 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:56,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:56,977 INFO L85 PathProgramCache]: Analyzing trace with hash 741672395, now seen corresponding path program 1 times [2024-11-09 18:31:56,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:56,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059279094] [2024-11-09 18:31:56,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:56,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:57,071 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-09 18:31:57,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:57,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059279094] [2024-11-09 18:31:57,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059279094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:57,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:57,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:57,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268399884] [2024-11-09 18:31:57,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:57,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:57,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:57,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:57,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:57,073 INFO L87 Difference]: Start difference. First operand 940 states and 1307 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 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) [2024-11-09 18:31:57,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:57,250 INFO L93 Difference]: Finished difference Result 1964 states and 2761 transitions. [2024-11-09 18:31:57,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:57,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 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 200 [2024-11-09 18:31:57,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:57,254 INFO L225 Difference]: With dead ends: 1964 [2024-11-09 18:31:57,254 INFO L226 Difference]: Without dead ends: 1021 [2024-11-09 18:31:57,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:57,256 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 48 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:57,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 289 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 18:31:57,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2024-11-09 18:31:57,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1018. [2024-11-09 18:31:57,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 1017 states have (on average 1.3824975417895773) internal successors, (1406), 1017 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:57,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1406 transitions. [2024-11-09 18:31:57,275 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1406 transitions. Word has length 200 [2024-11-09 18:31:57,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:57,275 INFO L471 AbstractCegarLoop]: Abstraction has 1018 states and 1406 transitions. [2024-11-09 18:31:57,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 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) [2024-11-09 18:31:57,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1406 transitions. [2024-11-09 18:31:57,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-09 18:31:57,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:57,278 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:31:57,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 18:31:57,279 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:57,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:57,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1863708540, now seen corresponding path program 1 times [2024-11-09 18:31:57,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:57,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497887143] [2024-11-09 18:31:57,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:57,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:57,372 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-11-09 18:31:57,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:57,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497887143] [2024-11-09 18:31:57,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497887143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:57,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:57,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:57,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442830693] [2024-11-09 18:31:57,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:57,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:57,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:57,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:57,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:57,377 INFO L87 Difference]: Start difference. First operand 1018 states and 1406 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:57,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:57,542 INFO L93 Difference]: Finished difference Result 2123 states and 2962 transitions. [2024-11-09 18:31:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:57,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 226 [2024-11-09 18:31:57,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:57,547 INFO L225 Difference]: With dead ends: 2123 [2024-11-09 18:31:57,548 INFO L226 Difference]: Without dead ends: 1108 [2024-11-09 18:31:57,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:57,549 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 48 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:57,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 289 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:31:57,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-11-09 18:31:57,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1105. [2024-11-09 18:31:57,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1104 states have (on average 1.3768115942028984) internal successors, (1520), 1104 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:57,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1520 transitions. [2024-11-09 18:31:57,572 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1520 transitions. Word has length 226 [2024-11-09 18:31:57,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:57,572 INFO L471 AbstractCegarLoop]: Abstraction has 1105 states and 1520 transitions. [2024-11-09 18:31:57,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:57,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1520 transitions. [2024-11-09 18:31:57,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-09 18:31:57,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:57,577 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:31:57,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 18:31:57,577 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:57,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:57,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1292457307, now seen corresponding path program 1 times [2024-11-09 18:31:57,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:57,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468603109] [2024-11-09 18:31:57,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:57,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:57,679 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-11-09 18:31:57,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:57,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468603109] [2024-11-09 18:31:57,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468603109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:57,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:57,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:57,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533541732] [2024-11-09 18:31:57,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:57,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:57,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:57,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:57,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:57,683 INFO L87 Difference]: Start difference. First operand 1105 states and 1520 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:57,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:57,855 INFO L93 Difference]: Finished difference Result 2294 states and 3187 transitions. [2024-11-09 18:31:57,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:57,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 226 [2024-11-09 18:31:57,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:57,859 INFO L225 Difference]: With dead ends: 2294 [2024-11-09 18:31:57,859 INFO L226 Difference]: Without dead ends: 1204 [2024-11-09 18:31:57,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:57,861 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 48 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:57,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 288 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:31:57,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2024-11-09 18:31:57,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1201. [2024-11-09 18:31:57,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1200 states have (on average 1.3791666666666667) internal successors, (1655), 1200 states have internal predecessors, (1655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:57,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1655 transitions. [2024-11-09 18:31:57,890 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1655 transitions. Word has length 226 [2024-11-09 18:31:57,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:57,890 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1655 transitions. [2024-11-09 18:31:57,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:57,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1655 transitions. [2024-11-09 18:31:57,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-09 18:31:57,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:57,894 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 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] [2024-11-09 18:31:57,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 18:31:57,894 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:57,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:57,895 INFO L85 PathProgramCache]: Analyzing trace with hash -923933697, now seen corresponding path program 1 times [2024-11-09 18:31:57,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:57,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700796157] [2024-11-09 18:31:57,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:57,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-09 18:31:57,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:57,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700796157] [2024-11-09 18:31:57,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700796157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:57,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:57,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:57,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162261014] [2024-11-09 18:31:57,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:57,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:57,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:57,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:57,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:57,981 INFO L87 Difference]: Start difference. First operand 1201 states and 1655 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:58,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:58,022 INFO L93 Difference]: Finished difference Result 3516 states and 4854 transitions. [2024-11-09 18:31:58,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:58,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 258 [2024-11-09 18:31:58,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:58,030 INFO L225 Difference]: With dead ends: 3516 [2024-11-09 18:31:58,030 INFO L226 Difference]: Without dead ends: 2357 [2024-11-09 18:31:58,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:58,032 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 155 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:58,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 570 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:31:58,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2024-11-09 18:31:58,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 2354. [2024-11-09 18:31:58,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2354 states, 2353 states have (on average 1.3803654908627285) internal successors, (3248), 2353 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:58,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2354 states to 2354 states and 3248 transitions. [2024-11-09 18:31:58,077 INFO L78 Accepts]: Start accepts. Automaton has 2354 states and 3248 transitions. Word has length 258 [2024-11-09 18:31:58,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:58,077 INFO L471 AbstractCegarLoop]: Abstraction has 2354 states and 3248 transitions. [2024-11-09 18:31:58,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:58,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2354 states and 3248 transitions. [2024-11-09 18:31:58,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-09 18:31:58,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:58,082 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 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] [2024-11-09 18:31:58,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 18:31:58,083 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:58,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:58,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1495184930, now seen corresponding path program 1 times [2024-11-09 18:31:58,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:58,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572292298] [2024-11-09 18:31:58,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:58,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:58,193 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2024-11-09 18:31:58,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:58,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572292298] [2024-11-09 18:31:58,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572292298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:58,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:58,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:58,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733629067] [2024-11-09 18:31:58,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:58,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:58,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:58,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:58,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:58,195 INFO L87 Difference]: Start difference. First operand 2354 states and 3248 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:58,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:58,380 INFO L93 Difference]: Finished difference Result 4918 states and 6844 transitions. [2024-11-09 18:31:58,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:58,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 258 [2024-11-09 18:31:58,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:58,389 INFO L225 Difference]: With dead ends: 4918 [2024-11-09 18:31:58,389 INFO L226 Difference]: Without dead ends: 2576 [2024-11-09 18:31:58,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:58,392 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 49 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:58,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 285 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 18:31:58,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2024-11-09 18:31:58,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2570. [2024-11-09 18:31:58,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2570 states, 2569 states have (on average 1.3880887504865707) internal successors, (3566), 2569 states have internal predecessors, (3566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:58,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 3566 transitions. [2024-11-09 18:31:58,452 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 3566 transitions. Word has length 258 [2024-11-09 18:31:58,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:58,452 INFO L471 AbstractCegarLoop]: Abstraction has 2570 states and 3566 transitions. [2024-11-09 18:31:58,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:58,453 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 3566 transitions. [2024-11-09 18:31:58,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-09 18:31:58,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:58,458 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 7, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:31:58,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 18:31:58,458 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:58,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:58,459 INFO L85 PathProgramCache]: Analyzing trace with hash -2004894966, now seen corresponding path program 1 times [2024-11-09 18:31:58,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:58,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438923729] [2024-11-09 18:31:58,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:58,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:58,546 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 427 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2024-11-09 18:31:58,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:58,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438923729] [2024-11-09 18:31:58,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438923729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:58,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:58,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:58,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024136950] [2024-11-09 18:31:58,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:58,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:58,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:58,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:58,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:58,549 INFO L87 Difference]: Start difference. First operand 2570 states and 3566 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:58,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:58,751 INFO L93 Difference]: Finished difference Result 5104 states and 7084 transitions. [2024-11-09 18:31:58,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:58,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 295 [2024-11-09 18:31:58,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:58,759 INFO L225 Difference]: With dead ends: 5104 [2024-11-09 18:31:58,759 INFO L226 Difference]: Without dead ends: 2558 [2024-11-09 18:31:58,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:58,762 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 51 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:58,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 281 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 18:31:58,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2024-11-09 18:31:58,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2552. [2024-11-09 18:31:58,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 2551 states have (on average 1.3767150137201098) internal successors, (3512), 2551 states have internal predecessors, (3512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:58,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3512 transitions. [2024-11-09 18:31:58,815 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3512 transitions. Word has length 295 [2024-11-09 18:31:58,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:58,815 INFO L471 AbstractCegarLoop]: Abstraction has 2552 states and 3512 transitions. [2024-11-09 18:31:58,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:58,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3512 transitions. [2024-11-09 18:31:58,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-09 18:31:58,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:58,821 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 8, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 18:31:58,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 18:31:58,821 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:58,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:58,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1577676390, now seen corresponding path program 1 times [2024-11-09 18:31:58,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:58,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133238136] [2024-11-09 18:31:58,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:58,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-09 18:31:58,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:58,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133238136] [2024-11-09 18:31:58,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133238136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:58,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:31:58,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:31:58,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598101894] [2024-11-09 18:31:58,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:58,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:58,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:58,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:58,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:58,947 INFO L87 Difference]: Start difference. First operand 2552 states and 3512 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:59,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:59,018 INFO L93 Difference]: Finished difference Result 7540 states and 10373 transitions. [2024-11-09 18:31:59,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:59,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 301 [2024-11-09 18:31:59,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:59,034 INFO L225 Difference]: With dead ends: 7540 [2024-11-09 18:31:59,035 INFO L226 Difference]: Without dead ends: 5030 [2024-11-09 18:31:59,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:31:59,039 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 81 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:59,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 382 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:31:59,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2024-11-09 18:31:59,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5027. [2024-11-09 18:31:59,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5027 states, 5026 states have (on average 1.371866295264624) internal successors, (6895), 5026 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:59,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5027 states to 5027 states and 6895 transitions. [2024-11-09 18:31:59,167 INFO L78 Accepts]: Start accepts. Automaton has 5027 states and 6895 transitions. Word has length 301 [2024-11-09 18:31:59,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:59,167 INFO L471 AbstractCegarLoop]: Abstraction has 5027 states and 6895 transitions. [2024-11-09 18:31:59,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:59,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5027 states and 6895 transitions. [2024-11-09 18:31:59,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-09 18:31:59,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:31:59,178 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 8, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 18:31:59,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 18:31:59,178 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:31:59,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:31:59,179 INFO L85 PathProgramCache]: Analyzing trace with hash -535122854, now seen corresponding path program 1 times [2024-11-09 18:31:59,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:31:59,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811174690] [2024-11-09 18:31:59,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:59,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:31:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:59,332 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 347 proven. 27 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2024-11-09 18:31:59,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:31:59,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811174690] [2024-11-09 18:31:59,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811174690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:31:59,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848587205] [2024-11-09 18:31:59,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:31:59,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:31:59,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:31:59,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:31:59,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 18:31:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:31:59,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 18:31:59,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:31:59,620 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2024-11-09 18:31:59,620 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 18:31:59,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848587205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:31:59,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 18:31:59,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-09 18:31:59,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911367810] [2024-11-09 18:31:59,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:31:59,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:31:59,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:31:59,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:31:59,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 18:31:59,623 INFO L87 Difference]: Start difference. First operand 5027 states and 6895 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:59,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:31:59,851 INFO L93 Difference]: Finished difference Result 9990 states and 13707 transitions. [2024-11-09 18:31:59,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:31:59,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 301 [2024-11-09 18:31:59,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:31:59,869 INFO L225 Difference]: With dead ends: 9990 [2024-11-09 18:31:59,869 INFO L226 Difference]: Without dead ends: 5039 [2024-11-09 18:31:59,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 18:31:59,878 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 36 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:31:59,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 314 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:31:59,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5039 states. [2024-11-09 18:31:59,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5039 to 5027. [2024-11-09 18:31:59,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5027 states, 5026 states have (on average 1.3503780342220453) internal successors, (6787), 5026 states have internal predecessors, (6787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:59,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5027 states to 5027 states and 6787 transitions. [2024-11-09 18:31:59,996 INFO L78 Accepts]: Start accepts. Automaton has 5027 states and 6787 transitions. Word has length 301 [2024-11-09 18:31:59,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:31:59,996 INFO L471 AbstractCegarLoop]: Abstraction has 5027 states and 6787 transitions. [2024-11-09 18:31:59,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:31:59,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5027 states and 6787 transitions. [2024-11-09 18:32:00,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-09 18:32:00,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:32:00,005 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 8, 7, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:32:00,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 18:32:00,206 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,SelfDestructingSolverStorable17 [2024-11-09 18:32:00,206 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:32:00,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:32:00,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1197409453, now seen corresponding path program 1 times [2024-11-09 18:32:00,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:32:00,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099503891] [2024-11-09 18:32:00,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:32:00,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:32:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:32:00,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 423 proven. 27 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2024-11-09 18:32:00,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:32:00,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099503891] [2024-11-09 18:32:00,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099503891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:32:00,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590142166] [2024-11-09 18:32:00,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:32:00,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:32:00,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:32:00,386 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:32:00,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 18:32:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:32:00,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 18:32:00,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:32:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 496 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2024-11-09 18:32:00,589 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 18:32:00,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590142166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:32:00,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 18:32:00,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-09 18:32:00,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658464735] [2024-11-09 18:32:00,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:32:00,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:32:00,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:32:00,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:32:00,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 18:32:00,592 INFO L87 Difference]: Start difference. First operand 5027 states and 6787 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:00,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:32:00,794 INFO L93 Difference]: Finished difference Result 10488 states and 14073 transitions. [2024-11-09 18:32:00,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:32:00,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 333 [2024-11-09 18:32:00,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:32:00,826 INFO L225 Difference]: With dead ends: 10488 [2024-11-09 18:32:00,827 INFO L226 Difference]: Without dead ends: 5537 [2024-11-09 18:32:00,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 18:32:00,835 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 61 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:32:00,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 269 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:32:00,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5537 states. [2024-11-09 18:32:00,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5537 to 5213. [2024-11-09 18:32:00,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 1.3493860322333078) internal successors, (7033), 5212 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:00,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 7033 transitions. [2024-11-09 18:32:00,940 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 7033 transitions. Word has length 333 [2024-11-09 18:32:00,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:32:00,940 INFO L471 AbstractCegarLoop]: Abstraction has 5213 states and 7033 transitions. [2024-11-09 18:32:00,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:00,941 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 7033 transitions. [2024-11-09 18:32:00,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-09 18:32:00,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:32:00,965 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 8, 7, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:32:00,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 18:32:01,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:32:01,166 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:32:01,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:32:01,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1922222851, now seen corresponding path program 1 times [2024-11-09 18:32:01,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:32:01,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397240588] [2024-11-09 18:32:01,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:32:01,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:32:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:32:01,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1144 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2024-11-09 18:32:01,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:32:01,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397240588] [2024-11-09 18:32:01,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397240588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:32:01,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:32:01,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:32:01,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762254187] [2024-11-09 18:32:01,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:32:01,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:32:01,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:32:01,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:32:01,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:32:01,306 INFO L87 Difference]: Start difference. First operand 5213 states and 7033 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:01,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:32:01,480 INFO L93 Difference]: Finished difference Result 10674 states and 14295 transitions. [2024-11-09 18:32:01,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:32:01,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 334 [2024-11-09 18:32:01,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:32:01,495 INFO L225 Difference]: With dead ends: 10674 [2024-11-09 18:32:01,495 INFO L226 Difference]: Without dead ends: 5021 [2024-11-09 18:32:01,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:32:01,502 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 39 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:32:01,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 319 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:32:01,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5021 states. [2024-11-09 18:32:01,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5021 to 4997. [2024-11-09 18:32:01,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4997 states, 4996 states have (on average 1.3452762209767815) internal successors, (6721), 4996 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4997 states to 4997 states and 6721 transitions. [2024-11-09 18:32:01,625 INFO L78 Accepts]: Start accepts. Automaton has 4997 states and 6721 transitions. Word has length 334 [2024-11-09 18:32:01,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:32:01,626 INFO L471 AbstractCegarLoop]: Abstraction has 4997 states and 6721 transitions. [2024-11-09 18:32:01,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:01,626 INFO L276 IsEmpty]: Start isEmpty. Operand 4997 states and 6721 transitions. [2024-11-09 18:32:01,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-09 18:32:01,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:32:01,636 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 9, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:32:01,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 18:32:01,637 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:32:01,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:32:01,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1775593942, now seen corresponding path program 1 times [2024-11-09 18:32:01,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:32:01,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860351089] [2024-11-09 18:32:01,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:32:01,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:32:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:32:01,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 390 proven. 27 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2024-11-09 18:32:01,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:32:01,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860351089] [2024-11-09 18:32:01,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860351089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:32:01,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351703280] [2024-11-09 18:32:01,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:32:01,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:32:01,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:32:01,786 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:32:01,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 18:32:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:32:01,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 18:32:01,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:32:02,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2024-11-09 18:32:02,336 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 18:32:02,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351703280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:32:02,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 18:32:02,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-09 18:32:02,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891833851] [2024-11-09 18:32:02,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:32:02,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:32:02,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:32:02,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:32:02,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 18:32:02,340 INFO L87 Difference]: Start difference. First operand 4997 states and 6721 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:02,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:32:02,473 INFO L93 Difference]: Finished difference Result 7504 states and 10073 transitions. [2024-11-09 18:32:02,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:32:02,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 341 [2024-11-09 18:32:02,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:32:02,484 INFO L225 Difference]: With dead ends: 7504 [2024-11-09 18:32:02,484 INFO L226 Difference]: Without dead ends: 5000 [2024-11-09 18:32:02,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 18:32:02,489 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 65 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:32:02,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 540 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:32:02,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5000 states. [2024-11-09 18:32:02,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5000 to 4985. [2024-11-09 18:32:02,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4985 states, 4984 states have (on average 1.3412921348314606) internal successors, (6685), 4984 states have internal predecessors, (6685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:02,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4985 states to 4985 states and 6685 transitions. [2024-11-09 18:32:02,607 INFO L78 Accepts]: Start accepts. Automaton has 4985 states and 6685 transitions. Word has length 341 [2024-11-09 18:32:02,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:32:02,608 INFO L471 AbstractCegarLoop]: Abstraction has 4985 states and 6685 transitions. [2024-11-09 18:32:02,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:02,608 INFO L276 IsEmpty]: Start isEmpty. Operand 4985 states and 6685 transitions. [2024-11-09 18:32:02,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-09 18:32:02,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:32:02,618 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 9, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-09 18:32:02,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 18:32:02,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:32:02,820 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:32:02,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:32:02,820 INFO L85 PathProgramCache]: Analyzing trace with hash 623138985, now seen corresponding path program 1 times [2024-11-09 18:32:02,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:32:02,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438379036] [2024-11-09 18:32:02,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:32:02,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:32:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:32:02,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 392 proven. 27 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2024-11-09 18:32:02,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:32:02,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438379036] [2024-11-09 18:32:02,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438379036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:32:02,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191539575] [2024-11-09 18:32:02,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:32:02,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:32:02,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:32:02,968 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:32:02,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 18:32:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:32:03,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 18:32:03,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:32:03,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 392 proven. 27 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2024-11-09 18:32:03,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:32:03,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 392 proven. 27 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2024-11-09 18:32:03,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191539575] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:32:03,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:32:03,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 18:32:03,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505211541] [2024-11-09 18:32:03,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:32:03,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 18:32:03,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:32:03,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 18:32:03,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-09 18:32:03,409 INFO L87 Difference]: Start difference. First operand 4985 states and 6685 transitions. Second operand has 11 states, 11 states have (on average 24.0) internal successors, (264), 11 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:03,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:32:03,901 INFO L93 Difference]: Finished difference Result 7708 states and 10445 transitions. [2024-11-09 18:32:03,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 18:32:03,902 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 24.0) internal successors, (264), 11 states have internal predecessors, (264), 0 states have call successors, (0), 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 341 [2024-11-09 18:32:03,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:32:03,910 INFO L225 Difference]: With dead ends: 7708 [2024-11-09 18:32:03,910 INFO L226 Difference]: Without dead ends: 5012 [2024-11-09 18:32:03,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 676 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-09 18:32:03,914 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 606 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 18:32:03,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 1190 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 18:32:03,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5012 states. [2024-11-09 18:32:03,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5012 to 4985. [2024-11-09 18:32:03,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4985 states, 4984 states have (on average 1.338884430176565) internal successors, (6673), 4984 states have internal predecessors, (6673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:03,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4985 states to 4985 states and 6673 transitions. [2024-11-09 18:32:03,993 INFO L78 Accepts]: Start accepts. Automaton has 4985 states and 6673 transitions. Word has length 341 [2024-11-09 18:32:03,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:32:03,993 INFO L471 AbstractCegarLoop]: Abstraction has 4985 states and 6673 transitions. [2024-11-09 18:32:03,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 24.0) internal successors, (264), 11 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:03,993 INFO L276 IsEmpty]: Start isEmpty. Operand 4985 states and 6673 transitions. [2024-11-09 18:32:03,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-09 18:32:03,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:32:04,000 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 9, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:32:04,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 18:32:04,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:32:04,201 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:32:04,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:32:04,201 INFO L85 PathProgramCache]: Analyzing trace with hash 2059832665, now seen corresponding path program 1 times [2024-11-09 18:32:04,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:32:04,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031154118] [2024-11-09 18:32:04,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:32:04,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:32:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:32:04,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 507 proven. 13 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2024-11-09 18:32:04,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:32:04,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031154118] [2024-11-09 18:32:04,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031154118] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:32:04,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427161646] [2024-11-09 18:32:04,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:32:04,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:32:04,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:32:04,370 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:32:04,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 18:32:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:32:04,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 18:32:04,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:32:04,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 392 proven. 27 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2024-11-09 18:32:04,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:32:04,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 392 proven. 27 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2024-11-09 18:32:04,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427161646] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:32:04,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:32:04,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2024-11-09 18:32:04,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696382641] [2024-11-09 18:32:04,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:32:04,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 18:32:04,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:32:04,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 18:32:04,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-09 18:32:04,749 INFO L87 Difference]: Start difference. First operand 4985 states and 6673 transitions. Second operand has 10 states, 10 states have (on average 36.5) internal successors, (365), 10 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:05,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:32:05,235 INFO L93 Difference]: Finished difference Result 6425 states and 8666 transitions. [2024-11-09 18:32:05,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 18:32:05,236 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 36.5) internal successors, (365), 10 states have internal predecessors, (365), 0 states have call successors, (0), 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 342 [2024-11-09 18:32:05,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:32:05,240 INFO L225 Difference]: With dead ends: 6425 [2024-11-09 18:32:05,240 INFO L226 Difference]: Without dead ends: 2492 [2024-11-09 18:32:05,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 682 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-09 18:32:05,244 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 340 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 18:32:05,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 1036 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 18:32:05,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2024-11-09 18:32:05,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 2474. [2024-11-09 18:32:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2473 states have (on average 1.3372422159320663) internal successors, (3307), 2473 states have internal predecessors, (3307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:05,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3307 transitions. [2024-11-09 18:32:05,292 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3307 transitions. Word has length 342 [2024-11-09 18:32:05,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:32:05,292 INFO L471 AbstractCegarLoop]: Abstraction has 2474 states and 3307 transitions. [2024-11-09 18:32:05,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 36.5) internal successors, (365), 10 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:05,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3307 transitions. [2024-11-09 18:32:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-09 18:32:05,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:32:05,296 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 9, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-09 18:32:05,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 18:32:05,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 18:32:05,497 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:32:05,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:32:05,499 INFO L85 PathProgramCache]: Analyzing trace with hash 2057690793, now seen corresponding path program 1 times [2024-11-09 18:32:05,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:32:05,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002998403] [2024-11-09 18:32:05,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:32:05,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:32:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:32:05,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 509 proven. 13 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2024-11-09 18:32:05,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:32:05,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002998403] [2024-11-09 18:32:05,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002998403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:32:05,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993730407] [2024-11-09 18:32:05,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:32:05,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:32:05,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:32:05,643 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:32:05,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 18:32:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:32:05,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 18:32:05,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:32:05,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 509 proven. 13 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2024-11-09 18:32:05,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:32:05,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 509 proven. 13 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2024-11-09 18:32:05,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993730407] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:32:05,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:32:05,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-09 18:32:05,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798166134] [2024-11-09 18:32:05,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:32:05,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 18:32:05,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:32:05,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 18:32:05,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 18:32:05,965 INFO L87 Difference]: Start difference. First operand 2474 states and 3307 transitions. Second operand has 6 states, 6 states have (on average 41.833333333333336) internal successors, (251), 6 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:06,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:32:06,356 INFO L93 Difference]: Finished difference Result 6168 states and 8373 transitions. [2024-11-09 18:32:06,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 18:32:06,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.833333333333336) internal successors, (251), 6 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 345 [2024-11-09 18:32:06,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:32:06,363 INFO L225 Difference]: With dead ends: 6168 [2024-11-09 18:32:06,363 INFO L226 Difference]: Without dead ends: 3568 [2024-11-09 18:32:06,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-09 18:32:06,366 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 353 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 18:32:06,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 727 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 18:32:06,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2024-11-09 18:32:06,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 2689. [2024-11-09 18:32:06,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 2688 states have (on average 1.3459821428571428) internal successors, (3618), 2688 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:06,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 3618 transitions. [2024-11-09 18:32:06,414 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 3618 transitions. Word has length 345 [2024-11-09 18:32:06,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:32:06,415 INFO L471 AbstractCegarLoop]: Abstraction has 2689 states and 3618 transitions. [2024-11-09 18:32:06,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.833333333333336) internal successors, (251), 6 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:06,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 3618 transitions. [2024-11-09 18:32:06,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-11-09 18:32:06,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:32:06,420 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 9, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:32:06,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 18:32:06,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:32:06,621 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:32:06,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:32:06,622 INFO L85 PathProgramCache]: Analyzing trace with hash -505696003, now seen corresponding path program 1 times [2024-11-09 18:32:06,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:32:06,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980846996] [2024-11-09 18:32:06,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:32:06,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:32:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:32:06,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 712 proven. 6 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2024-11-09 18:32:06,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:32:06,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980846996] [2024-11-09 18:32:06,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980846996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:32:06,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227618954] [2024-11-09 18:32:06,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:32:06,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:32:06,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:32:06,783 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:32:06,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 18:32:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:32:06,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 18:32:06,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:32:07,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 712 proven. 6 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2024-11-09 18:32:07,056 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:32:07,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 712 proven. 6 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2024-11-09 18:32:07,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227618954] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:32:07,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:32:07,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-09 18:32:07,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812932603] [2024-11-09 18:32:07,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:32:07,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 18:32:07,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:32:07,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 18:32:07,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 18:32:07,138 INFO L87 Difference]: Start difference. First operand 2689 states and 3618 transitions. Second operand has 6 states, 6 states have (on average 42.333333333333336) internal successors, (254), 6 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:07,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:32:07,401 INFO L93 Difference]: Finished difference Result 3812 states and 5085 transitions. [2024-11-09 18:32:07,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 18:32:07,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 42.333333333333336) internal successors, (254), 6 states have internal predecessors, (254), 0 states have call successors, (0), 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 377 [2024-11-09 18:32:07,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:32:07,404 INFO L225 Difference]: With dead ends: 3812 [2024-11-09 18:32:07,404 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 18:32:07,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 758 GetRequests, 753 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 18:32:07,407 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 77 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 18:32:07,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 510 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 18:32:07,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 18:32:07,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 18:32:07,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:07,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 18:32:07,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 377 [2024-11-09 18:32:07,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:32:07,409 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 18:32:07,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.333333333333336) internal successors, (254), 6 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 18:32:07,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 18:32:07,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 18:32:07,412 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 18:32:07,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 18:32:07,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:32:07,617 INFO L407 BasicCegarLoop]: Path program 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] [2024-11-09 18:32:07,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 18:32:09,019 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 18:32:09,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:32:09 BoogieIcfgContainer [2024-11-09 18:32:09,030 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 18:32:09,030 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 18:32:09,030 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 18:32:09,030 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 18:32:09,031 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:31:54" (3/4) ... [2024-11-09 18:32:09,033 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 18:32:09,052 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-09 18:32:09,053 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 18:32:09,053 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 18:32:09,054 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 18:32:09,201 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 18:32:09,204 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 18:32:09,204 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 18:32:09,204 INFO L158 Benchmark]: Toolchain (without parser) took 16384.80ms. Allocated memory was 153.1MB in the beginning and 526.4MB in the end (delta: 373.3MB). Free memory was 120.4MB in the beginning and 390.1MB in the end (delta: -269.7MB). Peak memory consumption was 102.6MB. Max. memory is 16.1GB. [2024-11-09 18:32:09,204 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 153.1MB. Free memory is still 120.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 18:32:09,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.06ms. Allocated memory is still 153.1MB. Free memory was 120.4MB in the beginning and 103.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 18:32:09,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.03ms. Allocated memory is still 153.1MB. Free memory was 103.1MB in the beginning and 99.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 18:32:09,205 INFO L158 Benchmark]: Boogie Preprocessor took 51.56ms. Allocated memory is still 153.1MB. Free memory was 99.7MB in the beginning and 97.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 18:32:09,205 INFO L158 Benchmark]: IcfgBuilder took 876.69ms. Allocated memory is still 153.1MB. Free memory was 96.8MB in the beginning and 88.8MB in the end (delta: 8.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 18:32:09,206 INFO L158 Benchmark]: TraceAbstraction took 14856.02ms. Allocated memory was 153.1MB in the beginning and 526.4MB in the end (delta: 373.3MB). Free memory was 88.8MB in the beginning and 400.6MB in the end (delta: -311.8MB). Peak memory consumption was 317.9MB. Max. memory is 16.1GB. [2024-11-09 18:32:09,206 INFO L158 Benchmark]: Witness Printer took 173.73ms. Allocated memory is still 526.4MB. Free memory was 400.6MB in the beginning and 390.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 18:32:09,208 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 153.1MB. Free memory is still 120.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.06ms. Allocated memory is still 153.1MB. Free memory was 120.4MB in the beginning and 103.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.03ms. Allocated memory is still 153.1MB. Free memory was 103.1MB in the beginning and 99.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.56ms. Allocated memory is still 153.1MB. Free memory was 99.7MB in the beginning and 97.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 876.69ms. Allocated memory is still 153.1MB. Free memory was 96.8MB in the beginning and 88.8MB in the end (delta: 8.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 14856.02ms. Allocated memory was 153.1MB in the beginning and 526.4MB in the end (delta: 373.3MB). Free memory was 88.8MB in the beginning and 400.6MB in the end (delta: -311.8MB). Peak memory consumption was 317.9MB. Max. memory is 16.1GB. * Witness Printer took 173.73ms. Allocated memory is still 526.4MB. Free memory was 400.6MB in the beginning and 390.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 624]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 158 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.4s, OverallIterations: 25, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2542 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2542 mSDsluCounter, 10747 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5105 mSDsCounter, 370 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3882 IncrementalHoareTripleChecker+Invalid, 4252 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 370 mSolverCounterUnsat, 5642 mSDtfsCounter, 3882 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3879 GetRequests, 3812 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5213occurred in iteration=19, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 25 MinimizatonAttempts, 1329 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 7775 NumberOfCodeBlocks, 7775 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 9144 ConstructedInterpolants, 0 QuantifiedInterpolants, 12820 SizeOfPredicates, 4 NumberOfNonLiveVariables, 4169 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 36 InterpolantComputations, 21 PerfectInterpolantSequences, 27389/27675 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 18:32:09,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE