./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/hardness-nfm22/hardness_operatoramount_amount500_file-97.i -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 27b7d41c83bd27c4821a45cf0c1b489a71375b91c18644eeffdc9ad906f09c11 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:06:46,834 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:06:46,891 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:06:46,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:06:46,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:06:46,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:06:46,924 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:06:46,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:06:46,925 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:06:46,926 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:06:46,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:06:46,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:06:46,928 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:06:46,928 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:06:46,928 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:06:46,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:06:46,929 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:06:46,929 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:06:46,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:06:46,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:06:46,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:06:46,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:06:46,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:06:46,933 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:06:46,933 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:06:46,934 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:06:46,934 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:06:46,934 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:06:46,934 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:06:46,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:06:46,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:06:46,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:06:46,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:06:46,936 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:06:46,937 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:06:46,937 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:06:46,937 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:06:46,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:06:46,938 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:06:46,938 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:06:46,938 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:06:46,939 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:06:46,939 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27b7d41c83bd27c4821a45cf0c1b489a71375b91c18644eeffdc9ad906f09c11 [2024-11-22 12:06:47,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:06:47,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:06:47,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:06:47,174 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:06:47,175 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:06:47,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-97.i [2024-11-22 12:06:48,530 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:06:48,766 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:06:48,766 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-97.i [2024-11-22 12:06:48,781 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566896db4/a713c80ff3a84ef2aab663682c4847c6/FLAG427008734 [2024-11-22 12:06:48,799 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566896db4/a713c80ff3a84ef2aab663682c4847c6 [2024-11-22 12:06:48,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:06:48,804 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:06:48,805 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:06:48,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:06:48,811 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:06:48,812 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:06:48" (1/1) ... [2024-11-22 12:06:48,812 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c6a2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:48, skipping insertion in model container [2024-11-22 12:06:48,813 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:06:48" (1/1) ... [2024-11-22 12:06:48,862 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:06:49,040 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/hardness-nfm22/hardness_operatoramount_amount500_file-97.i[916,929] [2024-11-22 12:06:49,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:06:49,333 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:06:49,344 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/hardness-nfm22/hardness_operatoramount_amount500_file-97.i[916,929] [2024-11-22 12:06:49,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:06:49,462 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:06:49,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49 WrapperNode [2024-11-22 12:06:49,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:06:49,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:06:49,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:06:49,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:06:49,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49" (1/1) ... [2024-11-22 12:06:49,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49" (1/1) ... [2024-11-22 12:06:49,611 INFO L138 Inliner]: procedures = 26, calls = 85, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 821 [2024-11-22 12:06:49,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:06:49,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:06:49,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:06:49,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:06:49,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49" (1/1) ... [2024-11-22 12:06:49,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49" (1/1) ... [2024-11-22 12:06:49,647 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49" (1/1) ... [2024-11-22 12:06:49,691 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]. [2024-11-22 12:06:49,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49" (1/1) ... [2024-11-22 12:06:49,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49" (1/1) ... [2024-11-22 12:06:49,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49" (1/1) ... [2024-11-22 12:06:49,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49" (1/1) ... [2024-11-22 12:06:49,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49" (1/1) ... [2024-11-22 12:06:49,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49" (1/1) ... [2024-11-22 12:06:49,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:06:49,774 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:06:49,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:06:49,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:06:49,775 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49" (1/1) ... [2024-11-22 12:06:49,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:06:49,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:06:49,900 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) [2024-11-22 12:06:49,907 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 [2024-11-22 12:06:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:06:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:06:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:06:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:06:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:06:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:06:50,061 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:06:50,063 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:06:51,266 INFO L? ?]: Removed 102 outVars from TransFormulas that were not future-live. [2024-11-22 12:06:51,266 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:06:51,282 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:06:51,282 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:06:51,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:06:51 BoogieIcfgContainer [2024-11-22 12:06:51,284 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:06:51,286 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:06:51,286 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:06:51,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:06:51,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:06:48" (1/3) ... [2024-11-22 12:06:51,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471511bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:06:51, skipping insertion in model container [2024-11-22 12:06:51,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:49" (2/3) ... [2024-11-22 12:06:51,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471511bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:06:51, skipping insertion in model container [2024-11-22 12:06:51,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:06:51" (3/3) ... [2024-11-22 12:06:51,299 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-97.i [2024-11-22 12:06:51,327 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:06:51,328 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:06:51,426 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:06:51,438 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;@2178fb43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:06:51,438 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:06:51,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 325 states, 250 states have (on average 1.552) internal successors, (388), 251 states have internal predecessors, (388), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-22 12:06:51,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-22 12:06:51,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:06:51,491 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:06:51,495 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:06:51,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:06:51,503 INFO L85 PathProgramCache]: Analyzing trace with hash -205189741, now seen corresponding path program 1 times [2024-11-22 12:06:51,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:06:51,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784935589] [2024-11-22 12:06:51,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:51,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:06:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:06:52,017 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2024-11-22 12:06:52,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:06:52,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784935589] [2024-11-22 12:06:52,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784935589] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:06:52,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774413123] [2024-11-22 12:06:52,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:52,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:06:52,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:06:52,029 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) [2024-11-22 12:06:52,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:06:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:06:52,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:06:52,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:06:52,413 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2024-11-22 12:06:52,414 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:06:52,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774413123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:06:52,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:06:52,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:06:52,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003507133] [2024-11-22 12:06:52,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:06:52,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:06:52,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:06:52,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:06:52,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:06:52,455 INFO L87 Difference]: Start difference. First operand has 325 states, 250 states have (on average 1.552) internal successors, (388), 251 states have internal predecessors, (388), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 2 states, 2 states have (on average 74.0) internal successors, (148), 2 states have internal predecessors, (148), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-22 12:06:52,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:06:52,531 INFO L93 Difference]: Finished difference Result 643 states and 1130 transitions. [2024-11-22 12:06:52,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:06:52,537 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 74.0) internal successors, (148), 2 states have internal predecessors, (148), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 2 states have call successors, (72) Word has length 503 [2024-11-22 12:06:52,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:06:52,552 INFO L225 Difference]: With dead ends: 643 [2024-11-22 12:06:52,552 INFO L226 Difference]: Without dead ends: 321 [2024-11-22 12:06:52,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:06:52,565 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:06:52,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:06:52,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-22 12:06:52,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2024-11-22 12:06:52,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 247 states have (on average 1.5303643724696356) internal successors, (378), 247 states have internal predecessors, (378), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-22 12:06:52,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 522 transitions. [2024-11-22 12:06:52,637 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 522 transitions. Word has length 503 [2024-11-22 12:06:52,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:06:52,638 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 522 transitions. [2024-11-22 12:06:52,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 74.0) internal successors, (148), 2 states have internal predecessors, (148), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-22 12:06:52,640 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 522 transitions. [2024-11-22 12:06:52,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-22 12:06:52,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:06:52,652 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:06:52,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 12:06:52,856 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,SelfDestructingSolverStorable0 [2024-11-22 12:06:52,857 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:06:52,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:06:52,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1557890029, now seen corresponding path program 1 times [2024-11-22 12:06:52,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:06:52,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380635920] [2024-11-22 12:06:52,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:52,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:06:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:06:53,350 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:06:53,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:06:53,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380635920] [2024-11-22 12:06:53,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380635920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:06:53,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:06:53,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:06:53,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669329333] [2024-11-22 12:06:53,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:06:53,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:06:53,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:06:53,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:06:53,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:06:53,355 INFO L87 Difference]: Start difference. First operand 321 states and 522 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:06:53,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:06:53,457 INFO L93 Difference]: Finished difference Result 828 states and 1344 transitions. [2024-11-22 12:06:53,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:06:53,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 503 [2024-11-22 12:06:53,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:06:53,463 INFO L225 Difference]: With dead ends: 828 [2024-11-22 12:06:53,464 INFO L226 Difference]: Without dead ends: 510 [2024-11-22 12:06:53,465 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 [2024-11-22 12:06:53,466 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 274 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:06:53,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 1066 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:06:53,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-22 12:06:53,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 507. [2024-11-22 12:06:53,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 410 states have (on average 1.5414634146341464) internal successors, (632), 411 states have internal predecessors, (632), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 93 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 12:06:53,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 820 transitions. [2024-11-22 12:06:53,502 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 820 transitions. Word has length 503 [2024-11-22 12:06:53,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:06:53,503 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 820 transitions. [2024-11-22 12:06:53,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:06:53,504 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 820 transitions. [2024-11-22 12:06:53,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-22 12:06:53,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:06:53,512 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:06:53,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:06:53,512 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:06:53,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:06:53,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1573408747, now seen corresponding path program 1 times [2024-11-22 12:06:53,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:06:53,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32555045] [2024-11-22 12:06:53,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:53,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:06:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:06:54,538 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:06:54,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:06:54,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32555045] [2024-11-22 12:06:54,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32555045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:06:54,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:06:54,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:06:54,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916958264] [2024-11-22 12:06:54,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:06:54,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:06:54,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:06:54,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:06:54,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:06:54,543 INFO L87 Difference]: Start difference. First operand 507 states and 820 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:06:55,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:06:55,137 INFO L93 Difference]: Finished difference Result 2553 states and 4148 transitions. [2024-11-22 12:06:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:06:55,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 503 [2024-11-22 12:06:55,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:06:55,148 INFO L225 Difference]: With dead ends: 2553 [2024-11-22 12:06:55,149 INFO L226 Difference]: Without dead ends: 2049 [2024-11-22 12:06:55,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:06:55,151 INFO L432 NwaCegarLoop]: 1053 mSDtfsCounter, 1374 mSDsluCounter, 3324 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 4377 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:06:55,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 4377 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:06:55,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2024-11-22 12:06:55,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 1063. [2024-11-22 12:06:55,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 832 states have (on average 1.5204326923076923) internal successors, (1265), 835 states have internal predecessors, (1265), 224 states have call successors, (224), 6 states have call predecessors, (224), 6 states have return successors, (224), 221 states have call predecessors, (224), 224 states have call successors, (224) [2024-11-22 12:06:55,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1713 transitions. [2024-11-22 12:06:55,246 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1713 transitions. Word has length 503 [2024-11-22 12:06:55,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:06:55,247 INFO L471 AbstractCegarLoop]: Abstraction has 1063 states and 1713 transitions. [2024-11-22 12:06:55,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:06:55,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1713 transitions. [2024-11-22 12:06:55,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-22 12:06:55,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:06:55,253 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:06:55,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:06:55,254 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:06:55,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:06:55,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1102583635, now seen corresponding path program 1 times [2024-11-22 12:06:55,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:06:55,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24093574] [2024-11-22 12:06:55,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:55,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:06:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:06:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:06:55,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:06:55,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24093574] [2024-11-22 12:06:55,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24093574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:06:55,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:06:55,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:06:55,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279967610] [2024-11-22 12:06:55,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:06:55,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:06:55,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:06:55,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:06:55,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:06:55,947 INFO L87 Difference]: Start difference. First operand 1063 states and 1713 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:06:56,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:06:56,215 INFO L93 Difference]: Finished difference Result 2593 states and 4172 transitions. [2024-11-22 12:06:56,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:06:56,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 503 [2024-11-22 12:06:56,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:06:56,223 INFO L225 Difference]: With dead ends: 2593 [2024-11-22 12:06:56,223 INFO L226 Difference]: Without dead ends: 1679 [2024-11-22 12:06:56,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:06:56,226 INFO L432 NwaCegarLoop]: 519 mSDtfsCounter, 437 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:06:56,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1536 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:06:56,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2024-11-22 12:06:56,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1077. [2024-11-22 12:06:56,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 846 states have (on average 1.5236406619385343) internal successors, (1289), 849 states have internal predecessors, (1289), 224 states have call successors, (224), 6 states have call predecessors, (224), 6 states have return successors, (224), 221 states have call predecessors, (224), 224 states have call successors, (224) [2024-11-22 12:06:56,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1737 transitions. [2024-11-22 12:06:56,286 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1737 transitions. Word has length 503 [2024-11-22 12:06:56,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:06:56,287 INFO L471 AbstractCegarLoop]: Abstraction has 1077 states and 1737 transitions. [2024-11-22 12:06:56,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:06:56,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1737 transitions. [2024-11-22 12:06:56,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-22 12:06:56,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:06:56,294 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:06:56,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:06:56,294 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:06:56,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:06:56,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1233808875, now seen corresponding path program 1 times [2024-11-22 12:06:56,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:06:56,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325894560] [2024-11-22 12:06:56,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:56,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:06:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:06:56,844 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:06:56,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:06:56,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325894560] [2024-11-22 12:06:56,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325894560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:06:56,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:06:56,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:06:56,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058809380] [2024-11-22 12:06:56,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:06:56,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:06:56,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:06:56,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:06:56,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:06:56,847 INFO L87 Difference]: Start difference. First operand 1077 states and 1737 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:06:56,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:06:56,888 INFO L93 Difference]: Finished difference Result 1961 states and 3153 transitions. [2024-11-22 12:06:56,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:06:56,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 503 [2024-11-22 12:06:56,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:06:56,894 INFO L225 Difference]: With dead ends: 1961 [2024-11-22 12:06:56,894 INFO L226 Difference]: Without dead ends: 1085 [2024-11-22 12:06:56,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:06:56,897 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 0 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:06:56,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1553 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:06:56,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2024-11-22 12:06:56,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1085. [2024-11-22 12:06:56,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 854 states have (on average 1.518735362997658) internal successors, (1297), 857 states have internal predecessors, (1297), 224 states have call successors, (224), 6 states have call predecessors, (224), 6 states have return successors, (224), 221 states have call predecessors, (224), 224 states have call successors, (224) [2024-11-22 12:06:56,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1745 transitions. [2024-11-22 12:06:56,947 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1745 transitions. Word has length 503 [2024-11-22 12:06:56,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:06:56,948 INFO L471 AbstractCegarLoop]: Abstraction has 1085 states and 1745 transitions. [2024-11-22 12:06:56,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:06:56,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1745 transitions. [2024-11-22 12:06:56,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2024-11-22 12:06:56,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:06:56,955 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:06:56,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:06:56,955 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:06:56,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:06:56,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1026294754, now seen corresponding path program 1 times [2024-11-22 12:06:56,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:06:56,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997032356] [2024-11-22 12:06:56,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:56,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:06:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:06:58,427 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:06:58,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:06:58,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997032356] [2024-11-22 12:06:58,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997032356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:06:58,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:06:58,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:06:58,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422410560] [2024-11-22 12:06:58,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:06:58,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:06:58,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:06:58,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:06:58,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:06:58,436 INFO L87 Difference]: Start difference. First operand 1085 states and 1745 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:06:58,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:06:58,746 INFO L93 Difference]: Finished difference Result 3440 states and 5481 transitions. [2024-11-22 12:06:58,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:06:58,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 504 [2024-11-22 12:06:58,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:06:58,758 INFO L225 Difference]: With dead ends: 3440 [2024-11-22 12:06:58,759 INFO L226 Difference]: Without dead ends: 2548 [2024-11-22 12:06:58,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:06:58,763 INFO L432 NwaCegarLoop]: 603 mSDtfsCounter, 864 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:06:58,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 1351 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:06:58,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2024-11-22 12:06:58,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 1803. [2024-11-22 12:06:58,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1487 states have (on average 1.5299260255548084) internal successors, (2275), 1494 states have internal predecessors, (2275), 304 states have call successors, (304), 11 states have call predecessors, (304), 11 states have return successors, (304), 297 states have call predecessors, (304), 304 states have call successors, (304) [2024-11-22 12:06:58,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2883 transitions. [2024-11-22 12:06:58,886 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2883 transitions. Word has length 504 [2024-11-22 12:06:58,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:06:58,887 INFO L471 AbstractCegarLoop]: Abstraction has 1803 states and 2883 transitions. [2024-11-22 12:06:58,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:06:58,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2883 transitions. [2024-11-22 12:06:58,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2024-11-22 12:06:58,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:06:58,900 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:06:58,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:06:58,900 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:06:58,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:06:58,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1360214752, now seen corresponding path program 1 times [2024-11-22 12:06:58,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:06:58,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313093918] [2024-11-22 12:06:58,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:58,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:06:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:07:00,576 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:07:00,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:07:00,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313093918] [2024-11-22 12:07:00,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313093918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:07:00,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:07:00,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:07:00,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068889821] [2024-11-22 12:07:00,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:07:00,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:07:00,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:07:00,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:07:00,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:07:00,580 INFO L87 Difference]: Start difference. First operand 1803 states and 2883 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:01,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:07:01,041 INFO L93 Difference]: Finished difference Result 4627 states and 7382 transitions. [2024-11-22 12:07:01,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:07:01,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 504 [2024-11-22 12:07:01,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:07:01,055 INFO L225 Difference]: With dead ends: 4627 [2024-11-22 12:07:01,056 INFO L226 Difference]: Without dead ends: 2985 [2024-11-22 12:07:01,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:07:01,061 INFO L432 NwaCegarLoop]: 513 mSDtfsCounter, 447 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:07:01,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 2011 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:07:01,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2024-11-22 12:07:01,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 1803. [2024-11-22 12:07:01,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1487 states have (on average 1.5285810356422327) internal successors, (2273), 1494 states have internal predecessors, (2273), 304 states have call successors, (304), 11 states have call predecessors, (304), 11 states have return successors, (304), 297 states have call predecessors, (304), 304 states have call successors, (304) [2024-11-22 12:07:01,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2881 transitions. [2024-11-22 12:07:01,166 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2881 transitions. Word has length 504 [2024-11-22 12:07:01,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:07:01,166 INFO L471 AbstractCegarLoop]: Abstraction has 1803 states and 2881 transitions. [2024-11-22 12:07:01,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:01,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2881 transitions. [2024-11-22 12:07:01,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2024-11-22 12:07:01,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:07:01,174 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:07:01,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:07:01,175 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:07:01,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:07:01,175 INFO L85 PathProgramCache]: Analyzing trace with hash 2130948318, now seen corresponding path program 1 times [2024-11-22 12:07:01,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:07:01,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356200071] [2024-11-22 12:07:01,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:07:01,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:07:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:07:02,673 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:07:02,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:07:02,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356200071] [2024-11-22 12:07:02,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356200071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:07:02,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:07:02,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:07:02,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067597057] [2024-11-22 12:07:02,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:07:02,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:07:02,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:07:02,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:07:02,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:07:02,676 INFO L87 Difference]: Start difference. First operand 1803 states and 2881 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:03,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:07:03,264 INFO L93 Difference]: Finished difference Result 9124 states and 14403 transitions. [2024-11-22 12:07:03,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:07:03,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 504 [2024-11-22 12:07:03,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:07:03,295 INFO L225 Difference]: With dead ends: 9124 [2024-11-22 12:07:03,296 INFO L226 Difference]: Without dead ends: 7548 [2024-11-22 12:07:03,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:07:03,304 INFO L432 NwaCegarLoop]: 1282 mSDtfsCounter, 1787 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 3381 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:07:03,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1787 Valid, 3381 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:07:03,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7548 states. [2024-11-22 12:07:03,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7548 to 5776. [2024-11-22 12:07:03,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5776 states, 4740 states have (on average 1.510548523206751) internal successors, (7160), 4768 states have internal predecessors, (7160), 1000 states have call successors, (1000), 35 states have call predecessors, (1000), 35 states have return successors, (1000), 972 states have call predecessors, (1000), 1000 states have call successors, (1000) [2024-11-22 12:07:03,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5776 states to 5776 states and 9160 transitions. [2024-11-22 12:07:03,661 INFO L78 Accepts]: Start accepts. Automaton has 5776 states and 9160 transitions. Word has length 504 [2024-11-22 12:07:03,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:07:03,662 INFO L471 AbstractCegarLoop]: Abstraction has 5776 states and 9160 transitions. [2024-11-22 12:07:03,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:03,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5776 states and 9160 transitions. [2024-11-22 12:07:03,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2024-11-22 12:07:03,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:07:03,672 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:07:03,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:07:03,672 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:07:03,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:07:03,673 INFO L85 PathProgramCache]: Analyzing trace with hash 511973404, now seen corresponding path program 1 times [2024-11-22 12:07:03,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:07:03,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413293191] [2024-11-22 12:07:03,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:07:03,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:07:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:07:04,646 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:07:04,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:07:04,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413293191] [2024-11-22 12:07:04,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413293191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:07:04,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:07:04,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:07:04,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046419096] [2024-11-22 12:07:04,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:07:04,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:07:04,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:07:04,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:07:04,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:07:04,648 INFO L87 Difference]: Start difference. First operand 5776 states and 9160 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:05,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:07:05,007 INFO L93 Difference]: Finished difference Result 10486 states and 16663 transitions. [2024-11-22 12:07:05,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:07:05,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 504 [2024-11-22 12:07:05,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:07:05,037 INFO L225 Difference]: With dead ends: 10486 [2024-11-22 12:07:05,041 INFO L226 Difference]: Without dead ends: 4825 [2024-11-22 12:07:05,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:07:05,054 INFO L432 NwaCegarLoop]: 725 mSDtfsCounter, 679 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:07:05,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 1321 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:07:05,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4825 states. [2024-11-22 12:07:05,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4825 to 4819. [2024-11-22 12:07:05,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4819 states, 4030 states have (on average 1.5233250620347394) internal successors, (6139), 4046 states have internal predecessors, (6139), 752 states have call successors, (752), 36 states have call predecessors, (752), 36 states have return successors, (752), 736 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-22 12:07:05,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4819 states to 4819 states and 7643 transitions. [2024-11-22 12:07:05,364 INFO L78 Accepts]: Start accepts. Automaton has 4819 states and 7643 transitions. Word has length 504 [2024-11-22 12:07:05,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:07:05,364 INFO L471 AbstractCegarLoop]: Abstraction has 4819 states and 7643 transitions. [2024-11-22 12:07:05,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:05,365 INFO L276 IsEmpty]: Start isEmpty. Operand 4819 states and 7643 transitions. [2024-11-22 12:07:05,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2024-11-22 12:07:05,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:07:05,375 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:07:05,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:07:05,376 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:07:05,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:07:05,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1991987004, now seen corresponding path program 1 times [2024-11-22 12:07:05,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:07:05,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709341240] [2024-11-22 12:07:05,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:07:05,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:07:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:07:06,804 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:07:06,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:07:06,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709341240] [2024-11-22 12:07:06,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709341240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:07:06,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:07:06,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:07:06,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136763672] [2024-11-22 12:07:06,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:07:06,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:07:06,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:07:06,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:07:06,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:07:06,809 INFO L87 Difference]: Start difference. First operand 4819 states and 7643 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:07,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:07:07,774 INFO L93 Difference]: Finished difference Result 12725 states and 20099 transitions. [2024-11-22 12:07:07,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:07:07,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 505 [2024-11-22 12:07:07,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:07:07,809 INFO L225 Difference]: With dead ends: 12725 [2024-11-22 12:07:07,810 INFO L226 Difference]: Without dead ends: 8219 [2024-11-22 12:07:07,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:07:07,823 INFO L432 NwaCegarLoop]: 694 mSDtfsCounter, 1314 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:07:07,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 2064 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:07:07,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8219 states. [2024-11-22 12:07:08,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8219 to 4216. [2024-11-22 12:07:08,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4216 states, 3707 states have (on average 1.5751281359589966) internal successors, (5839), 3713 states have internal predecessors, (5839), 484 states have call successors, (484), 24 states have call predecessors, (484), 24 states have return successors, (484), 478 states have call predecessors, (484), 484 states have call successors, (484) [2024-11-22 12:07:08,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4216 states to 4216 states and 6807 transitions. [2024-11-22 12:07:08,051 INFO L78 Accepts]: Start accepts. Automaton has 4216 states and 6807 transitions. Word has length 505 [2024-11-22 12:07:08,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:07:08,052 INFO L471 AbstractCegarLoop]: Abstraction has 4216 states and 6807 transitions. [2024-11-22 12:07:08,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:08,052 INFO L276 IsEmpty]: Start isEmpty. Operand 4216 states and 6807 transitions. [2024-11-22 12:07:08,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2024-11-22 12:07:08,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:07:08,057 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:07:08,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:07:08,057 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:07:08,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:07:08,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1915086206, now seen corresponding path program 1 times [2024-11-22 12:07:08,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:07:08,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292376454] [2024-11-22 12:07:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:07:08,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:07:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:07:08,574 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:07:08,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:07:08,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292376454] [2024-11-22 12:07:08,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292376454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:07:08,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:07:08,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:07:08,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485390571] [2024-11-22 12:07:08,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:07:08,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:07:08,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:07:08,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:07:08,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:07:08,577 INFO L87 Difference]: Start difference. First operand 4216 states and 6807 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:09,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:07:09,321 INFO L93 Difference]: Finished difference Result 15659 states and 25228 transitions. [2024-11-22 12:07:09,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:07:09,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 505 [2024-11-22 12:07:09,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:07:09,358 INFO L225 Difference]: With dead ends: 15659 [2024-11-22 12:07:09,358 INFO L226 Difference]: Without dead ends: 11751 [2024-11-22 12:07:09,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:07:09,374 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 1034 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 2638 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:07:09,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 2638 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:07:09,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11751 states. [2024-11-22 12:07:09,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11751 to 11596. [2024-11-22 12:07:09,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11596 states, 10223 states have (on average 1.5601095568815415) internal successors, (15949), 10241 states have internal predecessors, (15949), 1308 states have call successors, (1308), 64 states have call predecessors, (1308), 64 states have return successors, (1308), 1290 states have call predecessors, (1308), 1308 states have call successors, (1308) [2024-11-22 12:07:09,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11596 states to 11596 states and 18565 transitions. [2024-11-22 12:07:09,899 INFO L78 Accepts]: Start accepts. Automaton has 11596 states and 18565 transitions. Word has length 505 [2024-11-22 12:07:09,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:07:09,900 INFO L471 AbstractCegarLoop]: Abstraction has 11596 states and 18565 transitions. [2024-11-22 12:07:09,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:09,901 INFO L276 IsEmpty]: Start isEmpty. Operand 11596 states and 18565 transitions. [2024-11-22 12:07:09,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2024-11-22 12:07:09,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:07:09,909 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:07:09,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:07:09,910 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:07:09,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:07:09,912 INFO L85 PathProgramCache]: Analyzing trace with hash 225643394, now seen corresponding path program 1 times [2024-11-22 12:07:09,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:07:09,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136306126] [2024-11-22 12:07:09,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:07:09,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:07:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:07:11,173 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:07:11,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:07:11,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136306126] [2024-11-22 12:07:11,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136306126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:07:11,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:07:11,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:07:11,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048965522] [2024-11-22 12:07:11,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:07:11,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:07:11,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:07:11,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:07:11,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:07:11,176 INFO L87 Difference]: Start difference. First operand 11596 states and 18565 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-22 12:07:13,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:07:13,536 INFO L93 Difference]: Finished difference Result 40080 states and 63833 transitions. [2024-11-22 12:07:13,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:07:13,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 505 [2024-11-22 12:07:13,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:07:13,635 INFO L225 Difference]: With dead ends: 40080 [2024-11-22 12:07:13,635 INFO L226 Difference]: Without dead ends: 28840 [2024-11-22 12:07:13,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:07:13,676 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 1229 mSDsluCounter, 2260 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 3223 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:07:13,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 3223 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 12:07:13,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28840 states. [2024-11-22 12:07:15,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28840 to 28200. [2024-11-22 12:07:15,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28200 states, 25200 states have (on average 1.551031746031746) internal successors, (39086), 25266 states have internal predecessors, (39086), 2844 states have call successors, (2844), 155 states have call predecessors, (2844), 155 states have return successors, (2844), 2778 states have call predecessors, (2844), 2844 states have call successors, (2844) [2024-11-22 12:07:15,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28200 states to 28200 states and 44774 transitions. [2024-11-22 12:07:15,134 INFO L78 Accepts]: Start accepts. Automaton has 28200 states and 44774 transitions. Word has length 505 [2024-11-22 12:07:15,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:07:15,135 INFO L471 AbstractCegarLoop]: Abstraction has 28200 states and 44774 transitions. [2024-11-22 12:07:15,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-22 12:07:15,136 INFO L276 IsEmpty]: Start isEmpty. Operand 28200 states and 44774 transitions. [2024-11-22 12:07:15,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2024-11-22 12:07:15,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:07:15,157 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:07:15,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:07:15,158 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:07:15,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:07:15,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1464878773, now seen corresponding path program 1 times [2024-11-22 12:07:15,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:07:15,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167235947] [2024-11-22 12:07:15,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:07:15,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:07:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:07:16,053 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:07:16,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:07:16,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167235947] [2024-11-22 12:07:16,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167235947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:07:16,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:07:16,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:07:16,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967525993] [2024-11-22 12:07:16,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:07:16,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:07:16,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:07:16,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:07:16,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:07:16,056 INFO L87 Difference]: Start difference. First operand 28200 states and 44774 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:17,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:07:17,526 INFO L93 Difference]: Finished difference Result 72271 states and 114079 transitions. [2024-11-22 12:07:17,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:07:17,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 505 [2024-11-22 12:07:17,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:07:17,778 INFO L225 Difference]: With dead ends: 72271 [2024-11-22 12:07:17,778 INFO L226 Difference]: Without dead ends: 44596 [2024-11-22 12:07:17,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:07:17,823 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 652 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:07:17,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 1212 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:07:17,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44596 states. [2024-11-22 12:07:19,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44596 to 39360. [2024-11-22 12:07:19,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39360 states, 35640 states have (on average 1.5511784511784512) internal successors, (55284), 35736 states have internal predecessors, (55284), 3504 states have call successors, (3504), 215 states have call predecessors, (3504), 215 states have return successors, (3504), 3408 states have call predecessors, (3504), 3504 states have call successors, (3504) [2024-11-22 12:07:19,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39360 states to 39360 states and 62292 transitions. [2024-11-22 12:07:19,606 INFO L78 Accepts]: Start accepts. Automaton has 39360 states and 62292 transitions. Word has length 505 [2024-11-22 12:07:19,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:07:19,607 INFO L471 AbstractCegarLoop]: Abstraction has 39360 states and 62292 transitions. [2024-11-22 12:07:19,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:19,607 INFO L276 IsEmpty]: Start isEmpty. Operand 39360 states and 62292 transitions. [2024-11-22 12:07:19,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2024-11-22 12:07:19,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:07:19,632 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:07:19,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:07:19,633 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:07:19,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:07:19,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1392492215, now seen corresponding path program 1 times [2024-11-22 12:07:19,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:07:19,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801425519] [2024-11-22 12:07:19,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:07:19,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:07:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:07:20,678 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:07:20,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:07:20,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801425519] [2024-11-22 12:07:20,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801425519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:07:20,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:07:20,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:07:20,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531223817] [2024-11-22 12:07:20,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:07:20,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:07:20,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:07:20,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:07:20,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:07:20,682 INFO L87 Difference]: Start difference. First operand 39360 states and 62292 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:24,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:07:24,837 INFO L93 Difference]: Finished difference Result 150329 states and 236615 transitions. [2024-11-22 12:07:24,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:07:24,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 505 [2024-11-22 12:07:24,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:07:25,277 INFO L225 Difference]: With dead ends: 150329 [2024-11-22 12:07:25,277 INFO L226 Difference]: Without dead ends: 107760 [2024-11-22 12:07:25,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:07:25,327 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 1117 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:07:25,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 1985 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:07:25,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107760 states. [2024-11-22 12:07:29,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107760 to 87040. [2024-11-22 12:07:29,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87040 states, 80473 states have (on average 1.5541610229517975) internal successors, (125068), 80705 states have internal predecessors, (125068), 6136 states have call successors, (6136), 430 states have call predecessors, (6136), 430 states have return successors, (6136), 5904 states have call predecessors, (6136), 6136 states have call successors, (6136) [2024-11-22 12:07:29,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87040 states to 87040 states and 137340 transitions. [2024-11-22 12:07:29,851 INFO L78 Accepts]: Start accepts. Automaton has 87040 states and 137340 transitions. Word has length 505 [2024-11-22 12:07:29,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:07:29,852 INFO L471 AbstractCegarLoop]: Abstraction has 87040 states and 137340 transitions. [2024-11-22 12:07:29,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-22 12:07:29,853 INFO L276 IsEmpty]: Start isEmpty. Operand 87040 states and 137340 transitions. [2024-11-22 12:07:29,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2024-11-22 12:07:29,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:07:29,917 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:07:29,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:07:29,918 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:07:29,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:07:29,918 INFO L85 PathProgramCache]: Analyzing trace with hash -588859767, now seen corresponding path program 1 times [2024-11-22 12:07:29,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:07:29,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747122226] [2024-11-22 12:07:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:07:29,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:07:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:07:36,049 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-22 12:07:36,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:07:36,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747122226] [2024-11-22 12:07:36,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747122226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:07:36,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:07:36,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-22 12:07:36,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811555682] [2024-11-22 12:07:36,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:07:36,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 12:07:36,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:07:36,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 12:07:36,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:07:36,052 INFO L87 Difference]: Start difference. First operand 87040 states and 137340 transitions. Second operand has 18 states, 18 states have (on average 8.222222222222221) internal successors, (148), 18 states have internal predecessors, (148), 4 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) [2024-11-22 12:07:55,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:07:55,392 INFO L93 Difference]: Finished difference Result 533727 states and 836965 transitions. [2024-11-22 12:07:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:07:55,393 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.222222222222221) internal successors, (148), 18 states have internal predecessors, (148), 4 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) Word has length 505 [2024-11-22 12:07:55,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:07:56,910 INFO L225 Difference]: With dead ends: 533727 [2024-11-22 12:07:56,911 INFO L226 Difference]: Without dead ends: 447366 [2024-11-22 12:07:57,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=213, Invalid=543, Unknown=0, NotChecked=0, Total=756 [2024-11-22 12:07:57,328 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 8300 mSDsluCounter, 4941 mSDsCounter, 0 mSdLazyCounter, 3907 mSolverCounterSat, 927 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8300 SdHoareTripleChecker+Valid, 5474 SdHoareTripleChecker+Invalid, 4834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 927 IncrementalHoareTripleChecker+Valid, 3907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:07:57,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8300 Valid, 5474 Invalid, 4834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [927 Valid, 3907 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-22 12:07:57,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447366 states.