./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-14.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 fc4d3fa2ecedd768012cc7751a736db9e672ba88ad0e6eb887b83762ab048578 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:37:17,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:37:17,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 02:37:17,674 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:37:17,674 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:37:17,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:37:17,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:37:17,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:37:17,697 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:37:17,697 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:37:17,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:37:17,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:37:17,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:37:17,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:37:17,698 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:37:17,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:37:17,699 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:37:17,699 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:37:17,699 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 02:37:17,699 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:37:17,699 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:37:17,699 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:37:17,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:37:17,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:37:17,699 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:37:17,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:37:17,699 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:37:17,699 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:37:17,700 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:37:17,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:37:17,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:37:17,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:37:17,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:37:17,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:37:17,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:37:17,701 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:37:17,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:37:17,701 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 02:37:17,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 02:37:17,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:37:17,701 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:37:17,701 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:37:17,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:37:17,701 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> fc4d3fa2ecedd768012cc7751a736db9e672ba88ad0e6eb887b83762ab048578 [2025-02-06 02:37:17,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:37:17,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:37:17,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:37:17,935 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:37:17,935 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:37:17,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-14.i [2025-02-06 02:37:19,071 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/584c8c9b5/8593cdc866df4c4990cf3066dfab085a/FLAG02febc8a2 [2025-02-06 02:37:19,391 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:37:19,392 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-14.i [2025-02-06 02:37:19,414 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/584c8c9b5/8593cdc866df4c4990cf3066dfab085a/FLAG02febc8a2 [2025-02-06 02:37:19,655 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/584c8c9b5/8593cdc866df4c4990cf3066dfab085a [2025-02-06 02:37:19,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:37:19,659 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:37:19,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:37:19,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:37:19,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:37:19,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:37:19" (1/1) ... [2025-02-06 02:37:19,664 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9c66e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:19, skipping insertion in model container [2025-02-06 02:37:19,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:37:19" (1/1) ... [2025-02-06 02:37:19,701 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:37:19,807 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-14.i[916,929] [2025-02-06 02:37:20,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:37:20,034 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:37:20,041 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-14.i[916,929] [2025-02-06 02:37:20,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:37:20,176 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:37:20,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20 WrapperNode [2025-02-06 02:37:20,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:37:20,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:37:20,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:37:20,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:37:20,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20" (1/1) ... [2025-02-06 02:37:20,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20" (1/1) ... [2025-02-06 02:37:20,286 INFO L138 Inliner]: procedures = 26, calls = 97, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 874 [2025-02-06 02:37:20,287 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:37:20,287 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:37:20,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:37:20,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:37:20,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20" (1/1) ... [2025-02-06 02:37:20,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20" (1/1) ... [2025-02-06 02:37:20,306 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20" (1/1) ... [2025-02-06 02:37:20,410 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]. [2025-02-06 02:37:20,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20" (1/1) ... [2025-02-06 02:37:20,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20" (1/1) ... [2025-02-06 02:37:20,443 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20" (1/1) ... [2025-02-06 02:37:20,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20" (1/1) ... [2025-02-06 02:37:20,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20" (1/1) ... [2025-02-06 02:37:20,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20" (1/1) ... [2025-02-06 02:37:20,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:37:20,482 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:37:20,483 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:37:20,483 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:37:20,483 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20" (1/1) ... [2025-02-06 02:37:20,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:37:20,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:37:20,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 02:37:20,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 02:37:20,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:37:20,532 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:37:20,532 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:37:20,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 02:37:20,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:37:20,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:37:20,659 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:37:20,661 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:37:21,562 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L676: havoc property_#t~ite67#1;havoc property_#t~ite65#1;havoc property_#t~bitwise62#1;havoc property_#t~ite64#1;havoc property_#t~bitwise63#1;havoc property_#t~bitwise66#1;havoc property_#t~short68#1;havoc property_#t~ite71#1;havoc property_#t~ite70#1;havoc property_#t~bitwise69#1;havoc property_#t~short72#1;havoc property_#t~bitwise73#1;havoc property_#t~short74#1;havoc property_#t~ite76#1;havoc property_#t~bitwise75#1;havoc property_#t~short77#1;havoc property_#t~ite80#1;havoc property_#t~ite79#1;havoc property_#t~bitwise78#1;havoc property_#t~short81#1;havoc property_#t~ite84#1;havoc property_#t~ite83#1;havoc property_#t~bitwise82#1;havoc property_#t~short85#1;havoc property_#t~ite87#1;havoc property_#t~bitwise86#1;havoc property_#t~short88#1; [2025-02-06 02:37:21,731 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2025-02-06 02:37:21,731 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:37:21,759 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:37:21,760 INFO L337 CfgBuilder]: Removed 2 assume(true) statements. [2025-02-06 02:37:21,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:37:21 BoogieIcfgContainer [2025-02-06 02:37:21,760 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:37:21,762 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:37:21,762 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:37:21,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:37:21,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:37:19" (1/3) ... [2025-02-06 02:37:21,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9a6134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:37:21, skipping insertion in model container [2025-02-06 02:37:21,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:20" (2/3) ... [2025-02-06 02:37:21,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9a6134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:37:21, skipping insertion in model container [2025-02-06 02:37:21,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:37:21" (3/3) ... [2025-02-06 02:37:21,767 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-14.i [2025-02-06 02:37:21,776 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:37:21,779 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-14.i that has 2 procedures, 359 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:37:21,820 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:37:21,828 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;@2b952dc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:37:21,828 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:37:21,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 359 states, 272 states have (on average 1.525735294117647) internal successors, (415), 273 states have internal predecessors, (415), 84 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2025-02-06 02:37:21,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2025-02-06 02:37:21,854 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:21,855 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:21,856 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:21,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:21,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1539324908, now seen corresponding path program 1 times [2025-02-06 02:37:21,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:21,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816343082] [2025-02-06 02:37:21,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:21,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:21,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 574 statements into 1 equivalence classes. [2025-02-06 02:37:21,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 574 of 574 statements. [2025-02-06 02:37:21,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:21,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:22,446 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 13778 trivial. 0 not checked. [2025-02-06 02:37:22,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:22,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816343082] [2025-02-06 02:37:22,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816343082] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:37:22,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092811709] [2025-02-06 02:37:22,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:22,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:37:22,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:37:22,452 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:37:22,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 02:37:22,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 574 statements into 1 equivalence classes. [2025-02-06 02:37:22,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 574 of 574 statements. [2025-02-06 02:37:22,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:22,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:22,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 02:37:22,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:37:22,875 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 13778 trivial. 0 not checked. [2025-02-06 02:37:22,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:37:22,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092811709] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:22,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:37:22,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 02:37:22,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980437548] [2025-02-06 02:37:22,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:22,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 02:37:22,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:22,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 02:37:22,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:37:22,900 INFO L87 Difference]: Start difference. First operand has 359 states, 272 states have (on average 1.525735294117647) internal successors, (415), 273 states have internal predecessors, (415), 84 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) Second operand has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 2 states have call successors, (84) [2025-02-06 02:37:22,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:22,968 INFO L93 Difference]: Finished difference Result 712 states and 1245 transitions. [2025-02-06 02:37:22,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 02:37:22,970 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 2 states have call successors, (84) Word has length 574 [2025-02-06 02:37:22,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:22,976 INFO L225 Difference]: With dead ends: 712 [2025-02-06 02:37:22,976 INFO L226 Difference]: Without dead ends: 356 [2025-02-06 02:37:22,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 575 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:37:22,982 INFO L435 NwaCegarLoop]: 560 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:22,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 560 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:37:23,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2025-02-06 02:37:23,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2025-02-06 02:37:23,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 270 states have (on average 1.5185185185185186) internal successors, (410), 270 states have internal predecessors, (410), 84 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2025-02-06 02:37:23,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 578 transitions. [2025-02-06 02:37:23,094 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 578 transitions. Word has length 574 [2025-02-06 02:37:23,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:23,094 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 578 transitions. [2025-02-06 02:37:23,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 2 states have call successors, (84) [2025-02-06 02:37:23,095 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 578 transitions. [2025-02-06 02:37:23,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2025-02-06 02:37:23,102 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:23,102 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:23,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 02:37:23,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 02:37:23,307 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:23,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:23,309 INFO L85 PathProgramCache]: Analyzing trace with hash -175471910, now seen corresponding path program 1 times [2025-02-06 02:37:23,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:23,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910600319] [2025-02-06 02:37:23,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:23,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:23,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 574 statements into 1 equivalence classes. [2025-02-06 02:37:23,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 574 of 574 statements. [2025-02-06 02:37:23,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:23,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:23,762 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:37:23,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:23,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910600319] [2025-02-06 02:37:23,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910600319] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:23,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:23,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:37:23,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340554194] [2025-02-06 02:37:23,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:23,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:37:23,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:23,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:37:23,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:37:23,766 INFO L87 Difference]: Start difference. First operand 356 states and 578 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:37:23,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:23,930 INFO L93 Difference]: Finished difference Result 960 states and 1557 transitions. [2025-02-06 02:37:23,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:37:23,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 574 [2025-02-06 02:37:23,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:23,939 INFO L225 Difference]: With dead ends: 960 [2025-02-06 02:37:23,941 INFO L226 Difference]: Without dead ends: 607 [2025-02-06 02:37:23,942 INFO L434 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 [2025-02-06 02:37:23,942 INFO L435 NwaCegarLoop]: 802 mSDtfsCounter, 395 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:23,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1344 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:37:23,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2025-02-06 02:37:23,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 604. [2025-02-06 02:37:23,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 480 states have (on average 1.5354166666666667) internal successors, (737), 481 states have internal predecessors, (737), 121 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) [2025-02-06 02:37:23,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 979 transitions. [2025-02-06 02:37:23,998 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 979 transitions. Word has length 574 [2025-02-06 02:37:23,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:23,999 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 979 transitions. [2025-02-06 02:37:24,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:37:24,000 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 979 transitions. [2025-02-06 02:37:24,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2025-02-06 02:37:24,007 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:24,007 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:24,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 02:37:24,007 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:24,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:24,008 INFO L85 PathProgramCache]: Analyzing trace with hash 607907065, now seen corresponding path program 1 times [2025-02-06 02:37:24,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:24,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519780913] [2025-02-06 02:37:24,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:24,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:24,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 574 statements into 1 equivalence classes. [2025-02-06 02:37:24,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 574 of 574 statements. [2025-02-06 02:37:24,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:24,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:24,399 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:37:24,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:24,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519780913] [2025-02-06 02:37:24,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519780913] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:24,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:24,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:37:24,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019169716] [2025-02-06 02:37:24,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:24,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:37:24,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:24,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:37:24,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:37:24,404 INFO L87 Difference]: Start difference. First operand 604 states and 979 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:37:24,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:24,547 INFO L93 Difference]: Finished difference Result 1743 states and 2821 transitions. [2025-02-06 02:37:24,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:37:24,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 574 [2025-02-06 02:37:24,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:24,555 INFO L225 Difference]: With dead ends: 1743 [2025-02-06 02:37:24,555 INFO L226 Difference]: Without dead ends: 1142 [2025-02-06 02:37:24,561 INFO L434 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 [2025-02-06 02:37:24,562 INFO L435 NwaCegarLoop]: 933 mSDtfsCounter, 486 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:24,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1440 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:37:24,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2025-02-06 02:37:24,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 820. [2025-02-06 02:37:24,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 696 states have (on average 1.5747126436781609) internal successors, (1096), 697 states have internal predecessors, (1096), 121 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) [2025-02-06 02:37:24,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1338 transitions. [2025-02-06 02:37:24,642 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1338 transitions. Word has length 574 [2025-02-06 02:37:24,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:24,643 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 1338 transitions. [2025-02-06 02:37:24,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:37:24,643 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1338 transitions. [2025-02-06 02:37:24,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2025-02-06 02:37:24,651 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:24,651 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:24,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 02:37:24,651 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:24,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:24,652 INFO L85 PathProgramCache]: Analyzing trace with hash 78988026, now seen corresponding path program 1 times [2025-02-06 02:37:24,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:24,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828212418] [2025-02-06 02:37:24,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:24,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:24,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 574 statements into 1 equivalence classes. [2025-02-06 02:37:24,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 574 of 574 statements. [2025-02-06 02:37:24,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:24,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:37:24,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:24,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828212418] [2025-02-06 02:37:24,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828212418] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:24,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:24,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:37:24,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892415618] [2025-02-06 02:37:24,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:24,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:37:24,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:24,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:37:24,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:37:24,953 INFO L87 Difference]: Start difference. First operand 820 states and 1338 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:37:25,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:25,054 INFO L93 Difference]: Finished difference Result 2371 states and 3869 transitions. [2025-02-06 02:37:25,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:37:25,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 574 [2025-02-06 02:37:25,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:25,065 INFO L225 Difference]: With dead ends: 2371 [2025-02-06 02:37:25,065 INFO L226 Difference]: Without dead ends: 1554 [2025-02-06 02:37:25,067 INFO L434 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 [2025-02-06 02:37:25,068 INFO L435 NwaCegarLoop]: 871 mSDtfsCounter, 422 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:25,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1403 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:37:25,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2025-02-06 02:37:25,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1551. [2025-02-06 02:37:25,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1327 states have (on average 1.573474001507159) internal successors, (2088), 1330 states have internal predecessors, (2088), 219 states have call successors, (219), 4 states have call predecessors, (219), 4 states have return successors, (219), 216 states have call predecessors, (219), 219 states have call successors, (219) [2025-02-06 02:37:25,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2526 transitions. [2025-02-06 02:37:25,161 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2526 transitions. Word has length 574 [2025-02-06 02:37:25,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:25,162 INFO L471 AbstractCegarLoop]: Abstraction has 1551 states and 2526 transitions. [2025-02-06 02:37:25,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:37:25,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2526 transitions. [2025-02-06 02:37:25,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2025-02-06 02:37:25,168 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:25,168 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:25,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 02:37:25,169 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:25,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:25,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1406067525, now seen corresponding path program 1 times [2025-02-06 02:37:25,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:25,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758110497] [2025-02-06 02:37:25,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:25,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:25,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 574 statements into 1 equivalence classes. [2025-02-06 02:37:25,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 574 of 574 statements. [2025-02-06 02:37:25,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:25,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:25,729 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:37:25,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:25,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758110497] [2025-02-06 02:37:25,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758110497] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:25,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:25,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 02:37:25,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758007000] [2025-02-06 02:37:25,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:25,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 02:37:25,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:25,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 02:37:25,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:37:25,733 INFO L87 Difference]: Start difference. First operand 1551 states and 2526 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:37:26,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:26,481 INFO L93 Difference]: Finished difference Result 9883 states and 16108 transitions. [2025-02-06 02:37:26,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 02:37:26,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 574 [2025-02-06 02:37:26,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:26,518 INFO L225 Difference]: With dead ends: 9883 [2025-02-06 02:37:26,518 INFO L226 Difference]: Without dead ends: 8335 [2025-02-06 02:37:26,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 02:37:26,528 INFO L435 NwaCegarLoop]: 1675 mSDtfsCounter, 1816 mSDsluCounter, 2899 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 4574 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:26,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1816 Valid, 4574 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 02:37:26,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8335 states. [2025-02-06 02:37:26,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8335 to 6189. [2025-02-06 02:37:26,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6189 states, 5296 states have (on average 1.5657099697885197) internal successors, (8292), 5308 states have internal predecessors, (8292), 876 states have call successors, (876), 16 states have call predecessors, (876), 16 states have return successors, (876), 864 states have call predecessors, (876), 876 states have call successors, (876) [2025-02-06 02:37:26,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6189 states to 6189 states and 10044 transitions. [2025-02-06 02:37:26,888 INFO L78 Accepts]: Start accepts. Automaton has 6189 states and 10044 transitions. Word has length 574 [2025-02-06 02:37:26,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:26,889 INFO L471 AbstractCegarLoop]: Abstraction has 6189 states and 10044 transitions. [2025-02-06 02:37:26,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:37:26,889 INFO L276 IsEmpty]: Start isEmpty. Operand 6189 states and 10044 transitions. [2025-02-06 02:37:26,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2025-02-06 02:37:26,899 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:26,899 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:26,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 02:37:26,899 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:26,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:26,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1690164506, now seen corresponding path program 1 times [2025-02-06 02:37:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:26,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824154975] [2025-02-06 02:37:26,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:26,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:26,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 574 statements into 1 equivalence classes. [2025-02-06 02:37:26,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 574 of 574 statements. [2025-02-06 02:37:26,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:26,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:27,250 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:37:27,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:27,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824154975] [2025-02-06 02:37:27,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824154975] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:27,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:27,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:37:27,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459315547] [2025-02-06 02:37:27,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:27,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:37:27,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:27,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:37:27,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:37:27,252 INFO L87 Difference]: Start difference. First operand 6189 states and 10044 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:37:27,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:27,501 INFO L93 Difference]: Finished difference Result 13923 states and 22608 transitions. [2025-02-06 02:37:27,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:37:27,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 574 [2025-02-06 02:37:27,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:27,535 INFO L225 Difference]: With dead ends: 13923 [2025-02-06 02:37:27,536 INFO L226 Difference]: Without dead ends: 7737 [2025-02-06 02:37:27,550 INFO L434 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 [2025-02-06 02:37:27,551 INFO L435 NwaCegarLoop]: 867 mSDtfsCounter, 393 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:27,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1399 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:37:27,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7737 states. [2025-02-06 02:37:27,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7737 to 4643. [2025-02-06 02:37:27,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 3973 states have (on average 1.5625471935565065) internal successors, (6208), 3982 states have internal predecessors, (6208), 657 states have call successors, (657), 12 states have call predecessors, (657), 12 states have return successors, (657), 648 states have call predecessors, (657), 657 states have call successors, (657) [2025-02-06 02:37:27,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 7522 transitions. [2025-02-06 02:37:27,852 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 7522 transitions. Word has length 574 [2025-02-06 02:37:27,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:27,853 INFO L471 AbstractCegarLoop]: Abstraction has 4643 states and 7522 transitions. [2025-02-06 02:37:27,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:37:27,853 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 7522 transitions. [2025-02-06 02:37:27,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2025-02-06 02:37:27,859 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:27,860 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:27,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 02:37:27,860 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:27,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:27,860 INFO L85 PathProgramCache]: Analyzing trace with hash -762033411, now seen corresponding path program 1 times [2025-02-06 02:37:27,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:27,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176294279] [2025-02-06 02:37:27,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:27,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:27,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 575 statements into 1 equivalence classes. [2025-02-06 02:37:27,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 575 of 575 statements. [2025-02-06 02:37:27,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:27,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:28,621 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:37:28,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:28,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176294279] [2025-02-06 02:37:28,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176294279] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:28,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:28,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:37:28,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628294456] [2025-02-06 02:37:28,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:28,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:37:28,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:28,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:37:28,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:37:28,623 INFO L87 Difference]: Start difference. First operand 4643 states and 7522 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:37:29,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:29,186 INFO L93 Difference]: Finished difference Result 11676 states and 18904 transitions. [2025-02-06 02:37:29,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:37:29,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 575 [2025-02-06 02:37:29,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:29,214 INFO L225 Difference]: With dead ends: 11676 [2025-02-06 02:37:29,215 INFO L226 Difference]: Without dead ends: 7036 [2025-02-06 02:37:29,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:37:29,228 INFO L435 NwaCegarLoop]: 556 mSDtfsCounter, 428 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:29,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1646 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:37:29,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7036 states. [2025-02-06 02:37:29,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7036 to 6786. [2025-02-06 02:37:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6786 states, 6030 states have (on average 1.5849087893864013) internal successors, (9557), 6039 states have internal predecessors, (9557), 741 states have call successors, (741), 14 states have call predecessors, (741), 14 states have return successors, (741), 732 states have call predecessors, (741), 741 states have call successors, (741) [2025-02-06 02:37:29,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6786 states to 6786 states and 11039 transitions. [2025-02-06 02:37:29,600 INFO L78 Accepts]: Start accepts. Automaton has 6786 states and 11039 transitions. Word has length 575 [2025-02-06 02:37:29,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:29,601 INFO L471 AbstractCegarLoop]: Abstraction has 6786 states and 11039 transitions. [2025-02-06 02:37:29,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:37:29,601 INFO L276 IsEmpty]: Start isEmpty. Operand 6786 states and 11039 transitions. [2025-02-06 02:37:29,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2025-02-06 02:37:29,608 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:29,609 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:29,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 02:37:29,609 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:29,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:29,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1480739917, now seen corresponding path program 1 times [2025-02-06 02:37:29,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:29,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753463638] [2025-02-06 02:37:29,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:29,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:29,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 576 statements into 1 equivalence classes. [2025-02-06 02:37:30,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 576 of 576 statements. [2025-02-06 02:37:30,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:30,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:34,724 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:37:34,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:34,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753463638] [2025-02-06 02:37:34,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753463638] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:34,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:34,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2025-02-06 02:37:34,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152866741] [2025-02-06 02:37:34,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:34,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 02:37:34,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:34,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 02:37:34,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2025-02-06 02:37:34,727 INFO L87 Difference]: Start difference. First operand 6786 states and 11039 transitions. Second operand has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 18 states have internal predecessors, (159), 4 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 4 states have call predecessors, (84), 4 states have call successors, (84) [2025-02-06 02:37:40,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:40,321 INFO L93 Difference]: Finished difference Result 24766 states and 39537 transitions. [2025-02-06 02:37:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-02-06 02:37:40,322 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 18 states have internal predecessors, (159), 4 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 4 states have call predecessors, (84), 4 states have call successors, (84) Word has length 576 [2025-02-06 02:37:40,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:40,370 INFO L225 Difference]: With dead ends: 24766 [2025-02-06 02:37:40,371 INFO L226 Difference]: Without dead ends: 18982 [2025-02-06 02:37:40,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2025-02-06 02:37:40,388 INFO L435 NwaCegarLoop]: 747 mSDtfsCounter, 5552 mSDsluCounter, 7156 mSDsCounter, 0 mSdLazyCounter, 4180 mSolverCounterSat, 750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5552 SdHoareTripleChecker+Valid, 7903 SdHoareTripleChecker+Invalid, 4930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 750 IncrementalHoareTripleChecker+Valid, 4180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:40,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5552 Valid, 7903 Invalid, 4930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [750 Valid, 4180 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2025-02-06 02:37:40,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18982 states. [2025-02-06 02:37:41,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18982 to 17562. [2025-02-06 02:37:41,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17562 states, 15557 states have (on average 1.550684579289066) internal successors, (24124), 15606 states have internal predecessors, (24124), 1925 states have call successors, (1925), 79 states have call predecessors, (1925), 79 states have return successors, (1925), 1876 states have call predecessors, (1925), 1925 states have call successors, (1925) [2025-02-06 02:37:41,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17562 states to 17562 states and 27974 transitions. [2025-02-06 02:37:41,123 INFO L78 Accepts]: Start accepts. Automaton has 17562 states and 27974 transitions. Word has length 576 [2025-02-06 02:37:41,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:41,124 INFO L471 AbstractCegarLoop]: Abstraction has 17562 states and 27974 transitions. [2025-02-06 02:37:41,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 18 states have internal predecessors, (159), 4 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 4 states have call predecessors, (84), 4 states have call successors, (84) [2025-02-06 02:37:41,125 INFO L276 IsEmpty]: Start isEmpty. Operand 17562 states and 27974 transitions. [2025-02-06 02:37:41,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2025-02-06 02:37:41,143 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:41,143 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:41,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 02:37:41,144 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:41,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:41,144 INFO L85 PathProgramCache]: Analyzing trace with hash -787638220, now seen corresponding path program 1 times [2025-02-06 02:37:41,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:41,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649263234] [2025-02-06 02:37:41,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:41,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:41,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 576 statements into 1 equivalence classes. [2025-02-06 02:37:41,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 576 of 576 statements. [2025-02-06 02:37:41,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:41,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:46,348 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:37:46,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:46,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649263234] [2025-02-06 02:37:46,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649263234] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:46,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:46,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2025-02-06 02:37:46,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644103185] [2025-02-06 02:37:46,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:46,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-06 02:37:46,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:46,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-06 02:37:46,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2025-02-06 02:37:46,352 INFO L87 Difference]: Start difference. First operand 17562 states and 27974 transitions. Second operand has 19 states, 19 states have (on average 8.368421052631579) internal successors, (159), 19 states have internal predecessors, (159), 5 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 5 states have call predecessors, (84), 5 states have call successors, (84) [2025-02-06 02:37:54,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:54,248 INFO L93 Difference]: Finished difference Result 35046 states and 55285 transitions. [2025-02-06 02:37:54,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-02-06 02:37:54,248 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.368421052631579) internal successors, (159), 19 states have internal predecessors, (159), 5 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 5 states have call predecessors, (84), 5 states have call successors, (84) Word has length 576 [2025-02-06 02:37:54,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:54,309 INFO L225 Difference]: With dead ends: 35046 [2025-02-06 02:37:54,309 INFO L226 Difference]: Without dead ends: 28946 [2025-02-06 02:37:54,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=340, Invalid=1220, Unknown=0, NotChecked=0, Total=1560 [2025-02-06 02:37:54,326 INFO L435 NwaCegarLoop]: 1110 mSDtfsCounter, 5408 mSDsluCounter, 8076 mSDsCounter, 0 mSdLazyCounter, 6725 mSolverCounterSat, 786 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5408 SdHoareTripleChecker+Valid, 9186 SdHoareTripleChecker+Invalid, 7511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 786 IncrementalHoareTripleChecker+Valid, 6725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:54,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5408 Valid, 9186 Invalid, 7511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [786 Valid, 6725 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2025-02-06 02:37:54,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28946 states. [2025-02-06 02:37:55,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28946 to 18810. [2025-02-06 02:37:55,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18810 states, 16741 states have (on average 1.5490114091153455) internal successors, (25932), 16798 states have internal predecessors, (25932), 1981 states have call successors, (1981), 87 states have call predecessors, (1981), 87 states have return successors, (1981), 1924 states have call predecessors, (1981), 1981 states have call successors, (1981) [2025-02-06 02:37:55,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18810 states to 18810 states and 29894 transitions. [2025-02-06 02:37:55,334 INFO L78 Accepts]: Start accepts. Automaton has 18810 states and 29894 transitions. Word has length 576 [2025-02-06 02:37:55,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:55,335 INFO L471 AbstractCegarLoop]: Abstraction has 18810 states and 29894 transitions. [2025-02-06 02:37:55,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.368421052631579) internal successors, (159), 19 states have internal predecessors, (159), 5 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 5 states have call predecessors, (84), 5 states have call successors, (84) [2025-02-06 02:37:55,336 INFO L276 IsEmpty]: Start isEmpty. Operand 18810 states and 29894 transitions. [2025-02-06 02:37:55,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2025-02-06 02:37:55,360 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:55,361 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:55,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 02:37:55,361 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:55,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:55,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2088816780, now seen corresponding path program 1 times [2025-02-06 02:37:55,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:55,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037596792] [2025-02-06 02:37:55,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:55,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:55,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 576 statements into 1 equivalence classes. [2025-02-06 02:37:56,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 576 of 576 statements. [2025-02-06 02:37:56,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:56,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:57,298 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:37:57,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:57,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037596792] [2025-02-06 02:37:57,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037596792] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:57,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:57,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 02:37:57,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270867922] [2025-02-06 02:37:57,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:57,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 02:37:57,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:57,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 02:37:57,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:37:57,301 INFO L87 Difference]: Start difference. First operand 18810 states and 29894 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 2 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2025-02-06 02:37:58,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:58,590 INFO L93 Difference]: Finished difference Result 41434 states and 65595 transitions. [2025-02-06 02:37:58,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:37:58,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 2 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 576 [2025-02-06 02:37:58,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:58,644 INFO L225 Difference]: With dead ends: 41434 [2025-02-06 02:37:58,644 INFO L226 Difference]: Without dead ends: 24902 [2025-02-06 02:37:58,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 02:37:58,669 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 1164 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:58,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 2873 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 02:37:58,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24902 states. [2025-02-06 02:37:59,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24902 to 18810. [2025-02-06 02:37:59,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18810 states, 16741 states have (on average 1.5485335404097724) internal successors, (25924), 16798 states have internal predecessors, (25924), 1981 states have call successors, (1981), 87 states have call predecessors, (1981), 87 states have return successors, (1981), 1924 states have call predecessors, (1981), 1981 states have call successors, (1981) [2025-02-06 02:37:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18810 states to 18810 states and 29886 transitions. [2025-02-06 02:37:59,762 INFO L78 Accepts]: Start accepts. Automaton has 18810 states and 29886 transitions. Word has length 576 [2025-02-06 02:37:59,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:59,763 INFO L471 AbstractCegarLoop]: Abstraction has 18810 states and 29886 transitions. [2025-02-06 02:37:59,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 2 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2025-02-06 02:37:59,763 INFO L276 IsEmpty]: Start isEmpty. Operand 18810 states and 29886 transitions. [2025-02-06 02:37:59,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2025-02-06 02:37:59,785 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:59,785 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:59,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 02:37:59,785 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:59,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:59,786 INFO L85 PathProgramCache]: Analyzing trace with hash -525218638, now seen corresponding path program 1 times [2025-02-06 02:37:59,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:59,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508061414] [2025-02-06 02:37:59,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:59,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:59,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 576 statements into 1 equivalence classes. [2025-02-06 02:38:00,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 576 of 576 statements. [2025-02-06 02:38:00,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:00,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:02,177 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:38:02,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:38:02,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508061414] [2025-02-06 02:38:02,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508061414] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:38:02,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:38:02,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 02:38:02,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743819209] [2025-02-06 02:38:02,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:38:02,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 02:38:02,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:38:02,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 02:38:02,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 02:38:02,180 INFO L87 Difference]: Start difference. First operand 18810 states and 29886 transitions. Second operand has 13 states, 13 states have (on average 12.23076923076923) internal successors, (159), 13 states have internal predecessors, (159), 3 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2025-02-06 02:38:06,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:38:06,291 INFO L93 Difference]: Finished difference Result 48220 states and 76212 transitions. [2025-02-06 02:38:06,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-06 02:38:06,291 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.23076923076923) internal successors, (159), 13 states have internal predecessors, (159), 3 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) Word has length 576 [2025-02-06 02:38:06,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:38:06,400 INFO L225 Difference]: With dead ends: 48220 [2025-02-06 02:38:06,400 INFO L226 Difference]: Without dead ends: 42092 [2025-02-06 02:38:06,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2025-02-06 02:38:06,423 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 2659 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2659 SdHoareTripleChecker+Valid, 4491 SdHoareTripleChecker+Invalid, 2954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-02-06 02:38:06,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2659 Valid, 4491 Invalid, 2954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-02-06 02:38:06,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42092 states. [2025-02-06 02:38:07,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42092 to 34364. [2025-02-06 02:38:07,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34364 states, 31825 states have (on average 1.5704634721131185) internal successors, (49980), 31890 states have internal predecessors, (49980), 2417 states have call successors, (2417), 121 states have call predecessors, (2417), 121 states have return successors, (2417), 2352 states have call predecessors, (2417), 2417 states have call successors, (2417) [2025-02-06 02:38:07,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34364 states to 34364 states and 54814 transitions. [2025-02-06 02:38:07,603 INFO L78 Accepts]: Start accepts. Automaton has 34364 states and 54814 transitions. Word has length 576 [2025-02-06 02:38:07,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:38:07,603 INFO L471 AbstractCegarLoop]: Abstraction has 34364 states and 54814 transitions. [2025-02-06 02:38:07,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.23076923076923) internal successors, (159), 13 states have internal predecessors, (159), 3 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2025-02-06 02:38:07,604 INFO L276 IsEmpty]: Start isEmpty. Operand 34364 states and 54814 transitions. [2025-02-06 02:38:07,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2025-02-06 02:38:07,632 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:38:07,632 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:38:07,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 02:38:07,633 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:38:07,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:38:07,633 INFO L85 PathProgramCache]: Analyzing trace with hash 167883059, now seen corresponding path program 1 times [2025-02-06 02:38:07,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:38:07,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402324320] [2025-02-06 02:38:07,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:07,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:38:07,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 576 statements into 1 equivalence classes. [2025-02-06 02:38:07,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 576 of 576 statements. [2025-02-06 02:38:07,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:07,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:08,400 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:38:08,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:38:08,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402324320] [2025-02-06 02:38:08,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402324320] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:38:08,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:38:08,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 02:38:08,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239687719] [2025-02-06 02:38:08,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:38:08,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 02:38:08,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:38:08,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 02:38:08,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:38:08,403 INFO L87 Difference]: Start difference. First operand 34364 states and 54814 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 2 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2025-02-06 02:38:09,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:38:09,856 INFO L93 Difference]: Finished difference Result 68482 states and 109235 transitions. [2025-02-06 02:38:09,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:38:09,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 2 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 576 [2025-02-06 02:38:09,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:38:09,945 INFO L225 Difference]: With dead ends: 68482 [2025-02-06 02:38:09,945 INFO L226 Difference]: Without dead ends: 34364 [2025-02-06 02:38:10,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:38:10,002 INFO L435 NwaCegarLoop]: 549 mSDtfsCounter, 779 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:38:10,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 549 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 02:38:10,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34364 states. [2025-02-06 02:38:11,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34364 to 34364. [2025-02-06 02:38:11,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34364 states, 31825 states have (on average 1.5694579732914375) internal successors, (49948), 31890 states have internal predecessors, (49948), 2417 states have call successors, (2417), 121 states have call predecessors, (2417), 121 states have return successors, (2417), 2352 states have call predecessors, (2417), 2417 states have call successors, (2417) [2025-02-06 02:38:11,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34364 states to 34364 states and 54782 transitions. [2025-02-06 02:38:11,341 INFO L78 Accepts]: Start accepts. Automaton has 34364 states and 54782 transitions. Word has length 576 [2025-02-06 02:38:11,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:38:11,343 INFO L471 AbstractCegarLoop]: Abstraction has 34364 states and 54782 transitions. [2025-02-06 02:38:11,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 2 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2025-02-06 02:38:11,343 INFO L276 IsEmpty]: Start isEmpty. Operand 34364 states and 54782 transitions. [2025-02-06 02:38:11,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2025-02-06 02:38:11,369 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:38:11,369 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:38:11,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 02:38:11,370 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:38:11,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:38:11,370 INFO L85 PathProgramCache]: Analyzing trace with hash -640815656, now seen corresponding path program 1 times [2025-02-06 02:38:11,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:38:11,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129227010] [2025-02-06 02:38:11,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:11,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:38:11,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 577 statements into 1 equivalence classes. [2025-02-06 02:38:11,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 577 of 577 statements. [2025-02-06 02:38:11,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:11,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:13,582 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:38:13,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:38:13,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129227010] [2025-02-06 02:38:13,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129227010] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:38:13,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:38:13,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 02:38:13,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252080359] [2025-02-06 02:38:13,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:38:13,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 02:38:13,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:38:13,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 02:38:13,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 02:38:13,585 INFO L87 Difference]: Start difference. First operand 34364 states and 54782 transitions. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 3 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2025-02-06 02:38:17,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:38:17,648 INFO L93 Difference]: Finished difference Result 59174 states and 93802 transitions. [2025-02-06 02:38:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-06 02:38:17,649 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 3 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) Word has length 577 [2025-02-06 02:38:17,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:38:17,782 INFO L225 Difference]: With dead ends: 59174 [2025-02-06 02:38:17,785 INFO L226 Difference]: Without dead ends: 42552 [2025-02-06 02:38:17,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2025-02-06 02:38:17,868 INFO L435 NwaCegarLoop]: 835 mSDtfsCounter, 2207 mSDsluCounter, 3988 mSDsCounter, 0 mSdLazyCounter, 2304 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2207 SdHoareTripleChecker+Valid, 4823 SdHoareTripleChecker+Invalid, 2890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 2304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:38:17,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2207 Valid, 4823 Invalid, 2890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 2304 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-06 02:38:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42552 states. [2025-02-06 02:38:19,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42552 to 36740. [2025-02-06 02:38:19,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36740 states, 34169 states have (on average 1.5689074892446369) internal successors, (53608), 34238 states have internal predecessors, (53608), 2445 states have call successors, (2445), 125 states have call predecessors, (2445), 125 states have return successors, (2445), 2376 states have call predecessors, (2445), 2445 states have call successors, (2445) [2025-02-06 02:38:19,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36740 states to 36740 states and 58498 transitions. [2025-02-06 02:38:19,376 INFO L78 Accepts]: Start accepts. Automaton has 36740 states and 58498 transitions. Word has length 577 [2025-02-06 02:38:19,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:38:19,376 INFO L471 AbstractCegarLoop]: Abstraction has 36740 states and 58498 transitions. [2025-02-06 02:38:19,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 3 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2025-02-06 02:38:19,377 INFO L276 IsEmpty]: Start isEmpty. Operand 36740 states and 58498 transitions. [2025-02-06 02:38:19,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2025-02-06 02:38:19,401 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:38:19,402 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:38:19,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 02:38:19,402 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:38:19,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:38:19,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1941994216, now seen corresponding path program 1 times [2025-02-06 02:38:19,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:38:19,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082595492] [2025-02-06 02:38:19,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:19,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:38:19,428 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 577 statements into 1 equivalence classes. [2025-02-06 02:38:19,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 577 of 577 statements. [2025-02-06 02:38:19,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:19,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:21,479 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:38:21,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:38:21,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082595492] [2025-02-06 02:38:21,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082595492] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:38:21,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:38:21,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 02:38:21,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527704139] [2025-02-06 02:38:21,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:38:21,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 02:38:21,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:38:21,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 02:38:21,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:38:21,481 INFO L87 Difference]: Start difference. First operand 36740 states and 58498 transitions. Second operand has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:38:24,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:38:24,231 INFO L93 Difference]: Finished difference Result 122960 states and 194742 transitions. [2025-02-06 02:38:24,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 02:38:24,232 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 577 [2025-02-06 02:38:24,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:38:24,500 INFO L225 Difference]: With dead ends: 122960 [2025-02-06 02:38:24,500 INFO L226 Difference]: Without dead ends: 102282 [2025-02-06 02:38:24,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:38:24,535 INFO L435 NwaCegarLoop]: 650 mSDtfsCounter, 608 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-06 02:38:24,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 1858 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-06 02:38:24,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102282 states. [2025-02-06 02:38:26,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102282 to 58032. [2025-02-06 02:38:26,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58032 states, 55245 states have (on average 1.5802335052945968) internal successors, (87300), 55350 states have internal predecessors, (87300), 2625 states have call successors, (2625), 161 states have call predecessors, (2625), 161 states have return successors, (2625), 2520 states have call predecessors, (2625), 2625 states have call successors, (2625) [2025-02-06 02:38:26,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58032 states to 58032 states and 92550 transitions. [2025-02-06 02:38:26,219 INFO L78 Accepts]: Start accepts. Automaton has 58032 states and 92550 transitions. Word has length 577 [2025-02-06 02:38:26,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:38:26,220 INFO L471 AbstractCegarLoop]: Abstraction has 58032 states and 92550 transitions. [2025-02-06 02:38:26,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2025-02-06 02:38:26,221 INFO L276 IsEmpty]: Start isEmpty. Operand 58032 states and 92550 transitions. [2025-02-06 02:38:26,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2025-02-06 02:38:26,259 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:38:26,260 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:38:26,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 02:38:26,260 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:38:26,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:38:26,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1248892519, now seen corresponding path program 1 times [2025-02-06 02:38:26,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:38:26,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017638500] [2025-02-06 02:38:26,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:26,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:38:26,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 577 statements into 1 equivalence classes. [2025-02-06 02:38:26,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 577 of 577 statements. [2025-02-06 02:38:26,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:26,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:27,760 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2025-02-06 02:38:27,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:38:27,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017638500] [2025-02-06 02:38:27,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017638500] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:38:27,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:38:27,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 02:38:27,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028348001] [2025-02-06 02:38:27,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:38:27,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 02:38:27,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:38:27,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 02:38:27,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 02:38:27,762 INFO L87 Difference]: Start difference. First operand 58032 states and 92550 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 3 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2025-02-06 02:38:31,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:38:31,069 INFO L93 Difference]: Finished difference Result 119070 states and 188563 transitions. [2025-02-06 02:38:31,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 02:38:31,070 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 3 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) Word has length 577 [2025-02-06 02:38:31,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:38:31,250 INFO L225 Difference]: With dead ends: 119070 [2025-02-06 02:38:31,250 INFO L226 Difference]: Without dead ends: 90412 [2025-02-06 02:38:31,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-02-06 02:38:31,305 INFO L435 NwaCegarLoop]: 636 mSDtfsCounter, 1507 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:38:31,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 2366 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-06 02:38:31,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90412 states. [2025-02-06 02:38:33,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90412 to 45618. [2025-02-06 02:38:33,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45618 states, 43989 states have (on average 1.5914887812862306) internal successors, (70008), 44058 states have internal predecessors, (70008), 1521 states have call successors, (1521), 107 states have call predecessors, (1521), 107 states have return successors, (1521), 1452 states have call predecessors, (1521), 1521 states have call successors, (1521) [2025-02-06 02:38:33,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45618 states to 45618 states and 73050 transitions. [2025-02-06 02:38:33,521 INFO L78 Accepts]: Start accepts. Automaton has 45618 states and 73050 transitions. Word has length 577 [2025-02-06 02:38:33,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:38:33,522 INFO L471 AbstractCegarLoop]: Abstraction has 45618 states and 73050 transitions. [2025-02-06 02:38:33,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 3 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2025-02-06 02:38:33,522 INFO L276 IsEmpty]: Start isEmpty. Operand 45618 states and 73050 transitions. [2025-02-06 02:38:33,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2025-02-06 02:38:33,558 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:38:33,558 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:38:33,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 02:38:33,559 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:38:33,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:38:33,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1216574319, now seen corresponding path program 1 times [2025-02-06 02:38:33,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:38:33,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956436416] [2025-02-06 02:38:33,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:33,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:38:33,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 578 statements into 1 equivalence classes. [2025-02-06 02:38:33,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 578 of 578 statements. [2025-02-06 02:38:33,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:33,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat