./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6e77bebacf9cc027e4e188a98d7f434947d60e1a94e9441a91471f1ac89fe261 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 06:03:15,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 06:03:15,622 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 06:03:15,626 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 06:03:15,626 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 06:03:15,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 06:03:15,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 06:03:15,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 06:03:15,648 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 06:03:15,648 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 06:03:15,648 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 06:03:15,648 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 06:03:15,649 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 06:03:15,649 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 06:03:15,649 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 06:03:15,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 06:03:15,649 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 06:03:15,649 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 06:03:15,649 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 06:03:15,649 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 06:03:15,649 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 06:03:15,650 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 06:03:15,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 06:03:15,650 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 06:03:15,650 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 06:03:15,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 06:03:15,650 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 06:03:15,650 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 06:03:15,650 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 06:03:15,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 06:03:15,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 06:03:15,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 06:03:15,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:03:15,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 06:03:15,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 06:03:15,651 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 06:03:15,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 06:03:15,651 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 06:03:15,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 06:03:15,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 06:03:15,652 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 06:03:15,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 06:03:15,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 06:03:15,652 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/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 -> 6e77bebacf9cc027e4e188a98d7f434947d60e1a94e9441a91471f1ac89fe261 [2025-03-17 06:03:15,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 06:03:15,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 06:03:15,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 06:03:15,871 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 06:03:15,871 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 06:03:15,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i [2025-03-17 06:03:17,078 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b5fe6d4/77f5efe055f44f3cabfbe2e72d430fab/FLAG81e91801b [2025-03-17 06:03:17,320 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 06:03:17,322 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i [2025-03-17 06:03:17,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b5fe6d4/77f5efe055f44f3cabfbe2e72d430fab/FLAG81e91801b [2025-03-17 06:03:17,346 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b5fe6d4/77f5efe055f44f3cabfbe2e72d430fab [2025-03-17 06:03:17,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 06:03:17,350 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 06:03:17,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 06:03:17,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 06:03:17,354 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 06:03:17,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a83912a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17, skipping insertion in model container [2025-03-17 06:03:17,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,371 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 06:03:17,475 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i[916,929] [2025-03-17 06:03:17,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:03:17,537 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 06:03:17,546 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i[916,929] [2025-03-17 06:03:17,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:03:17,599 INFO L204 MainTranslator]: Completed translation [2025-03-17 06:03:17,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17 WrapperNode [2025-03-17 06:03:17,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 06:03:17,601 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 06:03:17,601 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 06:03:17,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 06:03:17,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,655 INFO L138 Inliner]: procedures = 27, calls = 162, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 461 [2025-03-17 06:03:17,656 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 06:03:17,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 06:03:17,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 06:03:17,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 06:03:17,664 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,693 INFO L175 MemorySlicer]: Split 131 memory accesses to 2 slices as follows [2, 129]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 35 writes are split as follows [0, 35]. [2025-03-17 06:03:17,694 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,694 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,711 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,726 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 06:03:17,726 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 06:03:17,726 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 06:03:17,726 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 06:03:17,727 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17" (1/1) ... [2025-03-17 06:03:17,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:03:17,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:03:17,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 06:03:17,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 06:03:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 06:03:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 06:03:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 06:03:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 06:03:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 06:03:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 06:03:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 06:03:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 06:03:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 06:03:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 06:03:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 06:03:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 06:03:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 06:03:17,843 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 06:03:17,844 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 06:03:18,159 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L131: havoc property_#t~mem73#1;havoc property_#t~ite82#1;havoc property_#t~mem81#1;havoc property_#t~mem74#1;havoc property_#t~mem75#1;havoc property_#t~mem76#1;havoc property_#t~ite80#1;havoc property_#t~mem77#1;havoc property_#t~mem78#1;havoc property_#t~mem79#1;havoc property_#t~mem83#1;havoc property_#t~mem84#1;havoc property_#t~ite87#1;havoc property_#t~mem85#1;havoc property_#t~mem86#1;havoc property_#t~ite100#1;havoc property_#t~mem88#1;havoc property_#t~mem89#1;havoc property_#t~ite97#1;havoc property_#t~ite94#1;havoc property_#t~mem91#1;havoc property_#t~mem90#1;havoc property_#t~mem93#1;havoc property_#t~mem92#1;havoc property_#t~mem96#1;havoc property_#t~mem95#1;havoc property_#t~mem99#1;havoc property_#t~mem98#1;havoc property_#t~short101#1;havoc property_#t~mem102#1;havoc property_#t~ite111#1;havoc property_#t~mem106#1;havoc property_#t~mem104#1;havoc property_#t~mem103#1;havoc property_#t~short105#1;havoc property_#t~mem110#1;havoc property_#t~mem107#1;havoc property_#t~mem108#1;havoc property_#t~short109#1;havoc property_#t~short112#1;havoc property_#t~mem118#1;havoc property_#t~mem114#1;havoc property_#t~mem113#1;havoc property_#t~ite117#1;havoc property_#t~mem115#1;havoc property_#t~mem116#1;havoc property_#t~short119#1;havoc property_#t~mem120#1;havoc property_#t~mem121#1;havoc property_#t~ite127#1;havoc property_#t~mem122#1;havoc property_#t~mem123#1;havoc property_#t~ite126#1;havoc property_#t~mem125#1;havoc property_#t~mem124#1;havoc property_#t~short128#1; [2025-03-17 06:03:18,194 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2025-03-17 06:03:18,194 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 06:03:18,204 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 06:03:18,205 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 06:03:18,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:03:18 BoogieIcfgContainer [2025-03-17 06:03:18,205 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 06:03:18,207 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 06:03:18,207 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 06:03:18,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 06:03:18,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:03:17" (1/3) ... [2025-03-17 06:03:18,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34bfd6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:03:18, skipping insertion in model container [2025-03-17 06:03:18,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:03:17" (2/3) ... [2025-03-17 06:03:18,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34bfd6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:03:18, skipping insertion in model container [2025-03-17 06:03:18,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:03:18" (3/3) ... [2025-03-17 06:03:18,213 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-90.i [2025-03-17 06:03:18,225 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 06:03:18,226 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-90.i that has 2 procedures, 105 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 06:03:18,262 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 06:03:18,270 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9218e45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 06:03:18,270 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 06:03:18,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 83 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 06:03:18,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-03-17 06:03:18,282 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:18,283 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:18,283 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:18,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:18,290 INFO L85 PathProgramCache]: Analyzing trace with hash -682474901, now seen corresponding path program 1 times [2025-03-17 06:03:18,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:18,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639671433] [2025-03-17 06:03:18,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:18,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:18,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-17 06:03:18,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-17 06:03:18,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:18,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:18,559 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2025-03-17 06:03:18,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:18,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639671433] [2025-03-17 06:03:18,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639671433] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:03:18,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756344801] [2025-03-17 06:03:18,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:18,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:03:18,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:03:18,564 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:03:18,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 06:03:18,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-17 06:03:18,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-17 06:03:18,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:18,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:18,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 06:03:18,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:03:18,773 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2025-03-17 06:03:18,774 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:03:18,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756344801] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:18,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:03:18,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 06:03:18,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744222126] [2025-03-17 06:03:18,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:18,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 06:03:18,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:18,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 06:03:18,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 06:03:18,797 INFO L87 Difference]: Start difference. First operand has 105 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 83 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:18,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:18,820 INFO L93 Difference]: Finished difference Result 207 states and 326 transitions. [2025-03-17 06:03:18,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 06:03:18,822 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 149 [2025-03-17 06:03:18,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:18,828 INFO L225 Difference]: With dead ends: 207 [2025-03-17 06:03:18,828 INFO L226 Difference]: Without dead ends: 103 [2025-03-17 06:03:18,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 06:03:18,834 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:18,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 06:03:18,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-17 06:03:18,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2025-03-17 06:03:18,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 81 states have (on average 1.3580246913580247) internal successors, (110), 81 states have internal predecessors, (110), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 06:03:18,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 150 transitions. [2025-03-17 06:03:18,862 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 150 transitions. Word has length 149 [2025-03-17 06:03:18,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:18,863 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 150 transitions. [2025-03-17 06:03:18,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:18,863 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 150 transitions. [2025-03-17 06:03:18,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-03-17 06:03:18,869 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:18,869 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:18,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 06:03:19,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 06:03:19,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:19,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:19,071 INFO L85 PathProgramCache]: Analyzing trace with hash 232358143, now seen corresponding path program 1 times [2025-03-17 06:03:19,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:19,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640326994] [2025-03-17 06:03:19,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:19,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:19,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-17 06:03:19,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-17 06:03:19,162 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:19,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:19,495 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2025-03-17 06:03:19,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:19,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640326994] [2025-03-17 06:03:19,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640326994] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:03:19,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799274467] [2025-03-17 06:03:19,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:19,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:03:19,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:03:19,497 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:03:19,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 06:03:19,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-17 06:03:19,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-17 06:03:19,632 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:19,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:19,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 06:03:19,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:03:19,690 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:19,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:03:19,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799274467] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:19,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:03:19,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2025-03-17 06:03:19,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398696889] [2025-03-17 06:03:19,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:19,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 06:03:19,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:19,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 06:03:19,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:19,692 INFO L87 Difference]: Start difference. First operand 103 states and 150 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:19,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:19,729 INFO L93 Difference]: Finished difference Result 207 states and 302 transitions. [2025-03-17 06:03:19,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 06:03:19,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 149 [2025-03-17 06:03:19,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:19,730 INFO L225 Difference]: With dead ends: 207 [2025-03-17 06:03:19,730 INFO L226 Difference]: Without dead ends: 105 [2025-03-17 06:03:19,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:19,731 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:19,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 06:03:19,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-03-17 06:03:19,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-03-17 06:03:19,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 83 states have (on average 1.3493975903614457) internal successors, (112), 83 states have internal predecessors, (112), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 06:03:19,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 152 transitions. [2025-03-17 06:03:19,739 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 152 transitions. Word has length 149 [2025-03-17 06:03:19,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:19,742 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 152 transitions. [2025-03-17 06:03:19,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:19,742 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 152 transitions. [2025-03-17 06:03:19,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-03-17 06:03:19,744 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:19,745 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:19,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 06:03:19,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-17 06:03:19,949 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:19,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:19,950 INFO L85 PathProgramCache]: Analyzing trace with hash -135780099, now seen corresponding path program 1 times [2025-03-17 06:03:19,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:19,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923807968] [2025-03-17 06:03:19,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:19,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:19,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-03-17 06:03:20,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-03-17 06:03:20,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:20,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:20,652 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:20,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:20,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923807968] [2025-03-17 06:03:20,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923807968] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:20,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:20,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 06:03:20,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584125589] [2025-03-17 06:03:20,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:20,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:03:20,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:20,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:03:20,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 06:03:20,654 INFO L87 Difference]: Start difference. First operand 105 states and 152 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:21,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:21,118 INFO L93 Difference]: Finished difference Result 303 states and 439 transitions. [2025-03-17 06:03:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:03:21,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 151 [2025-03-17 06:03:21,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:21,121 INFO L225 Difference]: With dead ends: 303 [2025-03-17 06:03:21,121 INFO L226 Difference]: Without dead ends: 199 [2025-03-17 06:03:21,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:03:21,125 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 245 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:21,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 237 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 06:03:21,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2025-03-17 06:03:21,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 107. [2025-03-17 06:03:21,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 85 states have (on average 1.3411764705882352) internal successors, (114), 85 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 06:03:21,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 154 transitions. [2025-03-17 06:03:21,147 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 154 transitions. Word has length 151 [2025-03-17 06:03:21,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:21,147 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 154 transitions. [2025-03-17 06:03:21,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:21,149 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 154 transitions. [2025-03-17 06:03:21,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2025-03-17 06:03:21,153 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:21,153 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:21,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 06:03:21,153 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:21,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:21,153 INFO L85 PathProgramCache]: Analyzing trace with hash 254946074, now seen corresponding path program 1 times [2025-03-17 06:03:21,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:21,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326336639] [2025-03-17 06:03:21,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:21,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:21,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes. [2025-03-17 06:03:21,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements. [2025-03-17 06:03:21,246 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:21,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:22,342 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:22,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:22,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326336639] [2025-03-17 06:03:22,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326336639] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:22,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:22,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 06:03:22,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088355586] [2025-03-17 06:03:22,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:22,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 06:03:22,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:22,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 06:03:22,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:22,345 INFO L87 Difference]: Start difference. First operand 107 states and 154 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:22,638 INFO L93 Difference]: Finished difference Result 220 states and 314 transitions. [2025-03-17 06:03:22,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 06:03:22,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 152 [2025-03-17 06:03:22,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:22,640 INFO L225 Difference]: With dead ends: 220 [2025-03-17 06:03:22,640 INFO L226 Difference]: Without dead ends: 114 [2025-03-17 06:03:22,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-17 06:03:22,641 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 89 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:22,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 449 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:03:22,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2025-03-17 06:03:22,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2025-03-17 06:03:22,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 91 states have (on average 1.3186813186813187) internal successors, (120), 91 states have internal predecessors, (120), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 06:03:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 160 transitions. [2025-03-17 06:03:22,656 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 160 transitions. Word has length 152 [2025-03-17 06:03:22,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:22,657 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 160 transitions. [2025-03-17 06:03:22,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:22,657 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 160 transitions. [2025-03-17 06:03:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-17 06:03:22,659 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:22,660 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:22,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 06:03:22,660 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:22,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:22,661 INFO L85 PathProgramCache]: Analyzing trace with hash 874047099, now seen corresponding path program 1 times [2025-03-17 06:03:22,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:22,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115176188] [2025-03-17 06:03:22,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:22,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:22,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 06:03:22,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 06:03:22,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:22,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2025-03-17 06:03:25,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:25,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115176188] [2025-03-17 06:03:25,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115176188] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:03:25,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357985854] [2025-03-17 06:03:25,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:25,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:03:25,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:03:25,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:03:25,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 06:03:25,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 06:03:25,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 06:03:25,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:25,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:25,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 62 conjuncts are in the unsatisfiable core [2025-03-17 06:03:25,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:03:25,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 79 [2025-03-17 06:03:26,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 131 [2025-03-17 06:03:26,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:03:26,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:03:26,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:03:26,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:03:26,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:03:26,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:03:26,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:03:26,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:03:26,499 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:03:26,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2025-03-17 06:03:26,566 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:03:26,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 36 [2025-03-17 06:03:26,587 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:03:26,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 36 [2025-03-17 06:03:26,660 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:03:26,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 107 treesize of output 86 [2025-03-17 06:03:26,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:03:26,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 110 treesize of output 50 [2025-03-17 06:03:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2025-03-17 06:03:27,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 06:03:27,375 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:27,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357985854] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 06:03:27,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-17 06:03:27,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19, 14] total 32 [2025-03-17 06:03:27,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883067948] [2025-03-17 06:03:27,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:27,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 06:03:27,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:27,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 06:03:27,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=905, Unknown=0, NotChecked=0, Total=992 [2025-03-17 06:03:27,377 INFO L87 Difference]: Start difference. First operand 114 states and 160 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:27,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:27,823 INFO L93 Difference]: Finished difference Result 282 states and 392 transitions. [2025-03-17 06:03:27,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 06:03:27,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2025-03-17 06:03:27,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:27,824 INFO L225 Difference]: With dead ends: 282 [2025-03-17 06:03:27,824 INFO L226 Difference]: Without dead ends: 169 [2025-03-17 06:03:27,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=106, Invalid=1154, Unknown=0, NotChecked=0, Total=1260 [2025-03-17 06:03:27,826 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 65 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:27,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 868 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 06:03:27,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2025-03-17 06:03:27,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 164. [2025-03-17 06:03:27,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 138 states have (on average 1.3333333333333333) internal successors, (184), 139 states have internal predecessors, (184), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 06:03:27,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 228 transitions. [2025-03-17 06:03:27,842 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 228 transitions. Word has length 153 [2025-03-17 06:03:27,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:27,842 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 228 transitions. [2025-03-17 06:03:27,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:27,842 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 228 transitions. [2025-03-17 06:03:27,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-17 06:03:27,843 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:27,844 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:27,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 06:03:28,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:03:28,045 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:28,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:28,046 INFO L85 PathProgramCache]: Analyzing trace with hash 368488474, now seen corresponding path program 1 times [2025-03-17 06:03:28,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:28,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503120550] [2025-03-17 06:03:28,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:28,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:28,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 06:03:28,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 06:03:28,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:28,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:29,079 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:29,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:29,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503120550] [2025-03-17 06:03:29,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503120550] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:29,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:29,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 06:03:29,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714950622] [2025-03-17 06:03:29,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:29,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 06:03:29,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:29,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 06:03:29,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:29,082 INFO L87 Difference]: Start difference. First operand 164 states and 228 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:29,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:29,339 INFO L93 Difference]: Finished difference Result 335 states and 462 transitions. [2025-03-17 06:03:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 06:03:29,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 153 [2025-03-17 06:03:29,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:29,344 INFO L225 Difference]: With dead ends: 335 [2025-03-17 06:03:29,344 INFO L226 Difference]: Without dead ends: 172 [2025-03-17 06:03:29,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:03:29,348 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 58 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:29,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 715 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:03:29,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2025-03-17 06:03:29,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 161. [2025-03-17 06:03:29,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 135 states have (on average 1.325925925925926) internal successors, (179), 136 states have internal predecessors, (179), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 06:03:29,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 223 transitions. [2025-03-17 06:03:29,361 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 223 transitions. Word has length 153 [2025-03-17 06:03:29,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:29,362 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 223 transitions. [2025-03-17 06:03:29,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:29,362 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 223 transitions. [2025-03-17 06:03:29,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-17 06:03:29,364 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:29,364 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:29,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 06:03:29,364 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:29,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:29,365 INFO L85 PathProgramCache]: Analyzing trace with hash -123025254, now seen corresponding path program 1 times [2025-03-17 06:03:29,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:29,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899081414] [2025-03-17 06:03:29,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:29,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:29,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 06:03:29,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 06:03:29,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:29,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:30,123 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:30,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:30,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899081414] [2025-03-17 06:03:30,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899081414] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:30,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:30,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 06:03:30,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167960174] [2025-03-17 06:03:30,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:30,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:03:30,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:30,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:03:30,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 06:03:30,128 INFO L87 Difference]: Start difference. First operand 161 states and 223 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:30,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:30,339 INFO L93 Difference]: Finished difference Result 366 states and 504 transitions. [2025-03-17 06:03:30,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:03:30,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2025-03-17 06:03:30,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:30,341 INFO L225 Difference]: With dead ends: 366 [2025-03-17 06:03:30,341 INFO L226 Difference]: Without dead ends: 206 [2025-03-17 06:03:30,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:30,343 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 59 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:30,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 586 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:03:30,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2025-03-17 06:03:30,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 161. [2025-03-17 06:03:30,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 135 states have (on average 1.3185185185185184) internal successors, (178), 136 states have internal predecessors, (178), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 06:03:30,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 222 transitions. [2025-03-17 06:03:30,352 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 222 transitions. Word has length 153 [2025-03-17 06:03:30,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:30,352 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 222 transitions. [2025-03-17 06:03:30,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:30,353 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 222 transitions. [2025-03-17 06:03:30,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-17 06:03:30,354 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:30,354 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:30,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 06:03:30,354 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:30,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:30,354 INFO L85 PathProgramCache]: Analyzing trace with hash -628583879, now seen corresponding path program 1 times [2025-03-17 06:03:30,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:30,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681651358] [2025-03-17 06:03:30,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:30,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:30,370 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 06:03:30,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 06:03:30,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:30,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:31,042 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 54 proven. 54 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2025-03-17 06:03:31,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:31,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681651358] [2025-03-17 06:03:31,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681651358] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:03:31,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981928061] [2025-03-17 06:03:31,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:31,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:03:31,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:03:31,046 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:03:31,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 06:03:31,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 06:03:31,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 06:03:31,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:31,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:31,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-03-17 06:03:31,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:03:31,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2025-03-17 06:03:31,226 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:03:31,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2025-03-17 06:03:31,236 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:03:31,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2025-03-17 06:03:31,266 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:03:31,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 64 [2025-03-17 06:03:31,364 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:03:31,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 35 [2025-03-17 06:03:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2025-03-17 06:03:31,456 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 06:03:31,675 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:31,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981928061] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 06:03:31,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-17 06:03:31,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 11] total 21 [2025-03-17 06:03:31,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281534129] [2025-03-17 06:03:31,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:31,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 06:03:31,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:31,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 06:03:31,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2025-03-17 06:03:31,676 INFO L87 Difference]: Start difference. First operand 161 states and 222 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:32,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:32,128 INFO L93 Difference]: Finished difference Result 380 states and 519 transitions. [2025-03-17 06:03:32,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 06:03:32,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2025-03-17 06:03:32,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:32,131 INFO L225 Difference]: With dead ends: 380 [2025-03-17 06:03:32,132 INFO L226 Difference]: Without dead ends: 220 [2025-03-17 06:03:32,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 302 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2025-03-17 06:03:32,133 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 69 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:32,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1019 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 06:03:32,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2025-03-17 06:03:32,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 213. [2025-03-17 06:03:32,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 179 states have (on average 1.312849162011173) internal successors, (235), 181 states have internal predecessors, (235), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-17 06:03:32,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 291 transitions. [2025-03-17 06:03:32,150 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 291 transitions. Word has length 153 [2025-03-17 06:03:32,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:32,150 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 291 transitions. [2025-03-17 06:03:32,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:32,151 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 291 transitions. [2025-03-17 06:03:32,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-17 06:03:32,151 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:32,152 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:32,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 06:03:32,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:03:32,352 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:32,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash 779990975, now seen corresponding path program 1 times [2025-03-17 06:03:32,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:32,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448160230] [2025-03-17 06:03:32,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:32,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:32,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-17 06:03:32,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-17 06:03:32,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:32,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:32,570 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:32,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:32,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448160230] [2025-03-17 06:03:32,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448160230] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:32,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:32,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 06:03:32,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645922250] [2025-03-17 06:03:32,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:32,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:03:32,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:32,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:03:32,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 06:03:32,571 INFO L87 Difference]: Start difference. First operand 213 states and 291 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:32,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:32,771 INFO L93 Difference]: Finished difference Result 563 states and 774 transitions. [2025-03-17 06:03:32,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:03:32,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2025-03-17 06:03:32,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:32,774 INFO L225 Difference]: With dead ends: 563 [2025-03-17 06:03:32,774 INFO L226 Difference]: Without dead ends: 351 [2025-03-17 06:03:32,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:32,775 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 59 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:32,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 440 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:03:32,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2025-03-17 06:03:32,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 253. [2025-03-17 06:03:32,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 219 states have (on average 1.3196347031963471) internal successors, (289), 221 states have internal predecessors, (289), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-17 06:03:32,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 345 transitions. [2025-03-17 06:03:32,796 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 345 transitions. Word has length 154 [2025-03-17 06:03:32,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:32,797 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 345 transitions. [2025-03-17 06:03:32,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:32,797 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 345 transitions. [2025-03-17 06:03:32,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-17 06:03:32,799 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:32,799 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:32,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 06:03:32,800 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:32,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:32,800 INFO L85 PathProgramCache]: Analyzing trace with hash -2007424512, now seen corresponding path program 1 times [2025-03-17 06:03:32,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:32,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871259113] [2025-03-17 06:03:32,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:32,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:32,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-17 06:03:32,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-17 06:03:32,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:32,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:33,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:33,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871259113] [2025-03-17 06:03:33,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871259113] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:33,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:33,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 06:03:33,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399012680] [2025-03-17 06:03:33,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:33,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:03:33,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:33,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:03:33,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 06:03:33,431 INFO L87 Difference]: Start difference. First operand 253 states and 345 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:33,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:33,689 INFO L93 Difference]: Finished difference Result 663 states and 903 transitions. [2025-03-17 06:03:33,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:03:33,690 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2025-03-17 06:03:33,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:33,692 INFO L225 Difference]: With dead ends: 663 [2025-03-17 06:03:33,692 INFO L226 Difference]: Without dead ends: 411 [2025-03-17 06:03:33,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:33,693 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 68 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:33,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 514 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:03:33,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2025-03-17 06:03:33,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 283. [2025-03-17 06:03:33,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 249 states have (on average 1.3172690763052208) internal successors, (328), 251 states have internal predecessors, (328), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-17 06:03:33,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 384 transitions. [2025-03-17 06:03:33,718 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 384 transitions. Word has length 154 [2025-03-17 06:03:33,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:33,719 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 384 transitions. [2025-03-17 06:03:33,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:33,719 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 384 transitions. [2025-03-17 06:03:33,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-17 06:03:33,723 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:33,723 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:33,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 06:03:33,724 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:33,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:33,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1230112866, now seen corresponding path program 1 times [2025-03-17 06:03:33,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:33,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233854891] [2025-03-17 06:03:33,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:33,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:33,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-17 06:03:33,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-17 06:03:33,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:33,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:34,262 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:34,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:34,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233854891] [2025-03-17 06:03:34,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233854891] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:34,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:34,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 06:03:34,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525413217] [2025-03-17 06:03:34,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:34,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:03:34,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:34,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:03:34,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 06:03:34,265 INFO L87 Difference]: Start difference. First operand 283 states and 384 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:34,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:34,540 INFO L93 Difference]: Finished difference Result 651 states and 879 transitions. [2025-03-17 06:03:34,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:03:34,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2025-03-17 06:03:34,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:34,544 INFO L225 Difference]: With dead ends: 651 [2025-03-17 06:03:34,544 INFO L226 Difference]: Without dead ends: 369 [2025-03-17 06:03:34,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:34,546 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 68 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:34,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 589 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:03:34,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2025-03-17 06:03:34,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 245. [2025-03-17 06:03:34,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 213 states have (on average 1.295774647887324) internal successors, (276), 214 states have internal predecessors, (276), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-17 06:03:34,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 328 transitions. [2025-03-17 06:03:34,564 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 328 transitions. Word has length 154 [2025-03-17 06:03:34,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:34,564 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 328 transitions. [2025-03-17 06:03:34,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:34,564 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 328 transitions. [2025-03-17 06:03:34,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-17 06:03:34,566 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:34,566 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:34,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 06:03:34,566 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:34,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:34,567 INFO L85 PathProgramCache]: Analyzing trace with hash 277438943, now seen corresponding path program 1 times [2025-03-17 06:03:34,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:34,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453626830] [2025-03-17 06:03:34,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:34,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:34,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-17 06:03:34,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-17 06:03:34,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:34,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:34,768 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:34,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:34,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453626830] [2025-03-17 06:03:34,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453626830] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:34,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:34,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 06:03:34,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048713385] [2025-03-17 06:03:34,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:34,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:03:34,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:34,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:03:34,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 06:03:34,769 INFO L87 Difference]: Start difference. First operand 245 states and 328 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:35,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:35,041 INFO L93 Difference]: Finished difference Result 573 states and 768 transitions. [2025-03-17 06:03:35,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:03:35,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2025-03-17 06:03:35,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:35,043 INFO L225 Difference]: With dead ends: 573 [2025-03-17 06:03:35,043 INFO L226 Difference]: Without dead ends: 329 [2025-03-17 06:03:35,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:35,044 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 49 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:35,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 640 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:03:35,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2025-03-17 06:03:35,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 277. [2025-03-17 06:03:35,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 245 states have (on average 1.2979591836734694) internal successors, (318), 246 states have internal predecessors, (318), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-17 06:03:35,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 370 transitions. [2025-03-17 06:03:35,069 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 370 transitions. Word has length 154 [2025-03-17 06:03:35,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:35,069 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 370 transitions. [2025-03-17 06:03:35,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 370 transitions. [2025-03-17 06:03:35,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-03-17 06:03:35,072 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:35,072 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:35,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 06:03:35,073 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:35,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:35,073 INFO L85 PathProgramCache]: Analyzing trace with hash -838420048, now seen corresponding path program 1 times [2025-03-17 06:03:35,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:35,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821218267] [2025-03-17 06:03:35,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:35,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:35,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-03-17 06:03:35,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-03-17 06:03:35,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:35,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:35,782 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:35,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:35,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821218267] [2025-03-17 06:03:35,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821218267] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:35,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:35,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 06:03:35,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473403146] [2025-03-17 06:03:35,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:35,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 06:03:35,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:35,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 06:03:35,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-17 06:03:35,785 INFO L87 Difference]: Start difference. First operand 277 states and 370 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:36,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:36,121 INFO L93 Difference]: Finished difference Result 561 states and 749 transitions. [2025-03-17 06:03:36,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 06:03:36,122 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2025-03-17 06:03:36,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:36,125 INFO L225 Difference]: With dead ends: 561 [2025-03-17 06:03:36,125 INFO L226 Difference]: Without dead ends: 285 [2025-03-17 06:03:36,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-03-17 06:03:36,127 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 88 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:36,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 577 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 06:03:36,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2025-03-17 06:03:36,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 279. [2025-03-17 06:03:36,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 247 states have (on average 1.2955465587044535) internal successors, (320), 248 states have internal predecessors, (320), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-17 06:03:36,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 372 transitions. [2025-03-17 06:03:36,151 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 372 transitions. Word has length 155 [2025-03-17 06:03:36,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:36,152 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 372 transitions. [2025-03-17 06:03:36,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:36,152 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 372 transitions. [2025-03-17 06:03:36,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 06:03:36,153 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:36,153 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:36,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 06:03:36,153 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:36,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:36,154 INFO L85 PathProgramCache]: Analyzing trace with hash -535378253, now seen corresponding path program 1 times [2025-03-17 06:03:36,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:36,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330416635] [2025-03-17 06:03:36,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:36,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:36,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 06:03:36,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 06:03:36,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:36,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:36,967 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:36,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:36,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330416635] [2025-03-17 06:03:36,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330416635] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:36,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:36,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 06:03:36,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271663709] [2025-03-17 06:03:36,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:36,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:03:36,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:36,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:03:36,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 06:03:36,969 INFO L87 Difference]: Start difference. First operand 279 states and 372 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:37,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:37,154 INFO L93 Difference]: Finished difference Result 715 states and 944 transitions. [2025-03-17 06:03:37,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:03:37,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 156 [2025-03-17 06:03:37,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:37,156 INFO L225 Difference]: With dead ends: 715 [2025-03-17 06:03:37,156 INFO L226 Difference]: Without dead ends: 437 [2025-03-17 06:03:37,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:37,157 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 45 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:37,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 458 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:03:37,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2025-03-17 06:03:37,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 399. [2025-03-17 06:03:37,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 367 states have (on average 1.2752043596730245) internal successors, (468), 368 states have internal predecessors, (468), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-17 06:03:37,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 520 transitions. [2025-03-17 06:03:37,171 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 520 transitions. Word has length 156 [2025-03-17 06:03:37,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:37,171 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 520 transitions. [2025-03-17 06:03:37,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:37,171 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 520 transitions. [2025-03-17 06:03:37,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 06:03:37,172 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:37,172 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:37,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 06:03:37,172 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:37,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:37,173 INFO L85 PathProgramCache]: Analyzing trace with hash 129167094, now seen corresponding path program 1 times [2025-03-17 06:03:37,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:37,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343778156] [2025-03-17 06:03:37,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:37,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:37,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 06:03:37,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 06:03:37,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:37,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:38,139 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:38,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:38,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343778156] [2025-03-17 06:03:38,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343778156] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:38,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:38,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-17 06:03:38,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164118015] [2025-03-17 06:03:38,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:38,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 06:03:38,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:38,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 06:03:38,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-17 06:03:38,141 INFO L87 Difference]: Start difference. First operand 399 states and 520 transitions. Second operand has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:38,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:38,933 INFO L93 Difference]: Finished difference Result 984 states and 1276 transitions. [2025-03-17 06:03:38,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 06:03:38,937 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 156 [2025-03-17 06:03:38,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:38,943 INFO L225 Difference]: With dead ends: 984 [2025-03-17 06:03:38,943 INFO L226 Difference]: Without dead ends: 586 [2025-03-17 06:03:38,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2025-03-17 06:03:38,945 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 217 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:38,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 1072 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 06:03:38,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2025-03-17 06:03:38,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 524. [2025-03-17 06:03:38,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 467 states have (on average 1.2569593147751605) internal successors, (587), 470 states have internal predecessors, (587), 46 states have call successors, (46), 10 states have call predecessors, (46), 10 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2025-03-17 06:03:38,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 679 transitions. [2025-03-17 06:03:38,983 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 679 transitions. Word has length 156 [2025-03-17 06:03:38,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:38,984 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 679 transitions. [2025-03-17 06:03:38,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:38,984 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 679 transitions. [2025-03-17 06:03:38,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 06:03:38,985 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:38,986 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:38,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 06:03:38,986 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:38,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:38,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1667784265, now seen corresponding path program 1 times [2025-03-17 06:03:38,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:38,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024942900] [2025-03-17 06:03:38,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:38,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:39,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 06:03:39,045 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 06:03:39,045 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:39,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:39,617 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:39,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:39,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024942900] [2025-03-17 06:03:39,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024942900] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:39,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:39,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 06:03:39,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262136790] [2025-03-17 06:03:39,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:39,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:03:39,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:39,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:03:39,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 06:03:39,619 INFO L87 Difference]: Start difference. First operand 524 states and 679 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:39,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:39,930 INFO L93 Difference]: Finished difference Result 1295 states and 1664 transitions. [2025-03-17 06:03:39,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:03:39,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 156 [2025-03-17 06:03:39,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:39,935 INFO L225 Difference]: With dead ends: 1295 [2025-03-17 06:03:39,936 INFO L226 Difference]: Without dead ends: 772 [2025-03-17 06:03:39,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:39,938 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 76 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:39,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 559 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 06:03:39,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2025-03-17 06:03:39,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 769. [2025-03-17 06:03:39,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 689 states have (on average 1.2380261248185775) internal successors, (853), 694 states have internal predecessors, (853), 64 states have call successors, (64), 15 states have call predecessors, (64), 15 states have return successors, (64), 59 states have call predecessors, (64), 64 states have call successors, (64) [2025-03-17 06:03:39,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 981 transitions. [2025-03-17 06:03:39,980 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 981 transitions. Word has length 156 [2025-03-17 06:03:39,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:39,980 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 981 transitions. [2025-03-17 06:03:39,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:39,980 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 981 transitions. [2025-03-17 06:03:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 06:03:39,983 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:39,983 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:39,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 06:03:39,983 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:39,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:39,984 INFO L85 PathProgramCache]: Analyzing trace with hash -706170248, now seen corresponding path program 1 times [2025-03-17 06:03:39,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:39,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378039173] [2025-03-17 06:03:39,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:39,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:40,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 06:03:40,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 06:03:40,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:40,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:40,177 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:40,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:40,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378039173] [2025-03-17 06:03:40,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378039173] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:40,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:40,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 06:03:40,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237414399] [2025-03-17 06:03:40,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:40,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 06:03:40,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:40,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 06:03:40,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 06:03:40,179 INFO L87 Difference]: Start difference. First operand 769 states and 981 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:40,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:40,445 INFO L93 Difference]: Finished difference Result 1574 states and 2025 transitions. [2025-03-17 06:03:40,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:03:40,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2025-03-17 06:03:40,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:40,450 INFO L225 Difference]: With dead ends: 1574 [2025-03-17 06:03:40,450 INFO L226 Difference]: Without dead ends: 806 [2025-03-17 06:03:40,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:40,453 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 122 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:40,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 746 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:03:40,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2025-03-17 06:03:40,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 754. [2025-03-17 06:03:40,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 664 states have (on average 1.233433734939759) internal successors, (819), 669 states have internal predecessors, (819), 72 states have call successors, (72), 17 states have call predecessors, (72), 17 states have return successors, (72), 67 states have call predecessors, (72), 72 states have call successors, (72) [2025-03-17 06:03:40,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 963 transitions. [2025-03-17 06:03:40,498 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 963 transitions. Word has length 156 [2025-03-17 06:03:40,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:40,499 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 963 transitions. [2025-03-17 06:03:40,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:40,499 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 963 transitions. [2025-03-17 06:03:40,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 06:03:40,501 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:40,501 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:40,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 06:03:40,501 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:40,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:40,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1878756433, now seen corresponding path program 1 times [2025-03-17 06:03:40,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:40,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869484290] [2025-03-17 06:03:40,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:40,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:40,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 06:03:40,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 06:03:40,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:40,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:40,949 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:40,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:40,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869484290] [2025-03-17 06:03:40,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869484290] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:40,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:40,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 06:03:40,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878093003] [2025-03-17 06:03:40,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:40,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:03:40,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:40,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:03:40,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 06:03:40,951 INFO L87 Difference]: Start difference. First operand 754 states and 963 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:41,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:41,273 INFO L93 Difference]: Finished difference Result 1736 states and 2216 transitions. [2025-03-17 06:03:41,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:03:41,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 156 [2025-03-17 06:03:41,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:41,277 INFO L225 Difference]: With dead ends: 1736 [2025-03-17 06:03:41,277 INFO L226 Difference]: Without dead ends: 983 [2025-03-17 06:03:41,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:41,279 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 90 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:41,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 482 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 06:03:41,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2025-03-17 06:03:41,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 980. [2025-03-17 06:03:41,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 863 states have (on average 1.2305909617612978) internal successors, (1062), 870 states have internal predecessors, (1062), 94 states have call successors, (94), 22 states have call predecessors, (94), 22 states have return successors, (94), 87 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-17 06:03:41,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1250 transitions. [2025-03-17 06:03:41,315 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1250 transitions. Word has length 156 [2025-03-17 06:03:41,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:41,315 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1250 transitions. [2025-03-17 06:03:41,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:41,316 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1250 transitions. [2025-03-17 06:03:41,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 06:03:41,317 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:41,317 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:41,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-17 06:03:41,317 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:41,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:41,318 INFO L85 PathProgramCache]: Analyzing trace with hash -81805074, now seen corresponding path program 1 times [2025-03-17 06:03:41,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:41,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623733261] [2025-03-17 06:03:41,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:41,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:41,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 06:03:41,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 06:03:41,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:41,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:42,024 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:42,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:42,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623733261] [2025-03-17 06:03:42,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623733261] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:42,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:42,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-17 06:03:42,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447525252] [2025-03-17 06:03:42,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:42,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 06:03:42,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:42,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 06:03:42,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-03-17 06:03:42,027 INFO L87 Difference]: Start difference. First operand 980 states and 1250 transitions. Second operand has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:42,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:42,664 INFO L93 Difference]: Finished difference Result 2151 states and 2736 transitions. [2025-03-17 06:03:42,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 06:03:42,664 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 156 [2025-03-17 06:03:42,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:42,669 INFO L225 Difference]: With dead ends: 2151 [2025-03-17 06:03:42,669 INFO L226 Difference]: Without dead ends: 1172 [2025-03-17 06:03:42,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2025-03-17 06:03:42,671 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 282 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:42,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 984 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 06:03:42,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2025-03-17 06:03:42,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 940. [2025-03-17 06:03:42,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 853 states have (on average 1.2297772567409144) internal successors, (1049), 858 states have internal predecessors, (1049), 68 states have call successors, (68), 18 states have call predecessors, (68), 18 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2025-03-17 06:03:42,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1185 transitions. [2025-03-17 06:03:42,724 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1185 transitions. Word has length 156 [2025-03-17 06:03:42,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:42,725 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1185 transitions. [2025-03-17 06:03:42,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:42,726 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1185 transitions. [2025-03-17 06:03:42,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 06:03:42,727 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:42,728 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:42,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-17 06:03:42,728 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:42,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:42,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1214211086, now seen corresponding path program 1 times [2025-03-17 06:03:42,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:42,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753012052] [2025-03-17 06:03:42,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:42,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:42,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 06:03:42,768 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 06:03:42,768 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:42,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:43,362 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:43,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:43,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753012052] [2025-03-17 06:03:43,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753012052] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:43,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:43,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 06:03:43,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237960283] [2025-03-17 06:03:43,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:43,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:03:43,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:43,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:03:43,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 06:03:43,364 INFO L87 Difference]: Start difference. First operand 940 states and 1185 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:43,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:43,542 INFO L93 Difference]: Finished difference Result 1910 states and 2409 transitions. [2025-03-17 06:03:43,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:03:43,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 156 [2025-03-17 06:03:43,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:43,546 INFO L225 Difference]: With dead ends: 1910 [2025-03-17 06:03:43,546 INFO L226 Difference]: Without dead ends: 971 [2025-03-17 06:03:43,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:43,548 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 90 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:43,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 465 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 06:03:43,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2025-03-17 06:03:43,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 936. [2025-03-17 06:03:43,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 849 states have (on average 1.221436984687868) internal successors, (1037), 854 states have internal predecessors, (1037), 68 states have call successors, (68), 18 states have call predecessors, (68), 18 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2025-03-17 06:03:43,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1173 transitions. [2025-03-17 06:03:43,591 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1173 transitions. Word has length 156 [2025-03-17 06:03:43,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:43,591 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1173 transitions. [2025-03-17 06:03:43,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:03:43,591 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1173 transitions. [2025-03-17 06:03:43,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 06:03:43,593 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:43,593 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:43,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-17 06:03:43,593 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:43,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:43,594 INFO L85 PathProgramCache]: Analyzing trace with hash -917142416, now seen corresponding path program 1 times [2025-03-17 06:03:43,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:43,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414293339] [2025-03-17 06:03:43,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:43,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:43,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 06:03:43,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 06:03:43,619 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:43,619 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:43,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:43,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414293339] [2025-03-17 06:03:43,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414293339] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:43,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:43,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 06:03:43,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995981728] [2025-03-17 06:03:43,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:43,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 06:03:43,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:43,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 06:03:43,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 06:03:43,875 INFO L87 Difference]: Start difference. First operand 936 states and 1173 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:44,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:44,102 INFO L93 Difference]: Finished difference Result 1994 states and 2521 transitions. [2025-03-17 06:03:44,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:03:44,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2025-03-17 06:03:44,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:44,107 INFO L225 Difference]: With dead ends: 1994 [2025-03-17 06:03:44,107 INFO L226 Difference]: Without dead ends: 1059 [2025-03-17 06:03:44,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:03:44,110 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 122 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:44,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 742 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:03:44,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2025-03-17 06:03:44,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 897. [2025-03-17 06:03:44,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 810 states have (on average 1.2209876543209877) internal successors, (989), 815 states have internal predecessors, (989), 68 states have call successors, (68), 18 states have call predecessors, (68), 18 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2025-03-17 06:03:44,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1125 transitions. [2025-03-17 06:03:44,151 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1125 transitions. Word has length 156 [2025-03-17 06:03:44,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:44,151 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1125 transitions. [2025-03-17 06:03:44,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:44,151 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1125 transitions. [2025-03-17 06:03:44,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-03-17 06:03:44,153 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:44,153 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:44,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-17 06:03:44,153 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:44,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:44,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1101747088, now seen corresponding path program 1 times [2025-03-17 06:03:44,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:44,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182622356] [2025-03-17 06:03:44,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:44,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:44,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-03-17 06:03:44,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-03-17 06:03:44,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:44,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:44,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:44,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182622356] [2025-03-17 06:03:44,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182622356] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:44,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:44,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 06:03:44,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326451640] [2025-03-17 06:03:44,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:44,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 06:03:44,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:44,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 06:03:44,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 06:03:44,363 INFO L87 Difference]: Start difference. First operand 897 states and 1125 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:44,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:44,588 INFO L93 Difference]: Finished difference Result 2569 states and 3228 transitions. [2025-03-17 06:03:44,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 06:03:44,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2025-03-17 06:03:44,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:44,597 INFO L225 Difference]: With dead ends: 2569 [2025-03-17 06:03:44,597 INFO L226 Difference]: Without dead ends: 1673 [2025-03-17 06:03:44,600 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 [2025-03-17 06:03:44,603 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 102 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:44,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 339 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:03:44,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2025-03-17 06:03:44,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1207. [2025-03-17 06:03:44,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1095 states have (on average 1.2283105022831051) internal successors, (1345), 1100 states have internal predecessors, (1345), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (88), 83 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-17 06:03:44,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1521 transitions. [2025-03-17 06:03:44,647 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1521 transitions. Word has length 157 [2025-03-17 06:03:44,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:44,647 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1521 transitions. [2025-03-17 06:03:44,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:44,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1521 transitions. [2025-03-17 06:03:44,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-03-17 06:03:44,648 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:44,648 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:44,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-17 06:03:44,649 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:44,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:44,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1607305713, now seen corresponding path program 1 times [2025-03-17 06:03:44,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:44,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543408217] [2025-03-17 06:03:44,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:44,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:44,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-03-17 06:03:44,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-03-17 06:03:44,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:44,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:45,438 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:45,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:45,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543408217] [2025-03-17 06:03:45,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543408217] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:45,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:45,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 06:03:45,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344101382] [2025-03-17 06:03:45,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:45,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 06:03:45,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:45,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 06:03:45,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 06:03:45,440 INFO L87 Difference]: Start difference. First operand 1207 states and 1521 transitions. Second operand has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2025-03-17 06:03:46,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:46,135 INFO L93 Difference]: Finished difference Result 3669 states and 4631 transitions. [2025-03-17 06:03:46,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 06:03:46,135 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 157 [2025-03-17 06:03:46,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:46,143 INFO L225 Difference]: With dead ends: 3669 [2025-03-17 06:03:46,143 INFO L226 Difference]: Without dead ends: 2533 [2025-03-17 06:03:46,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-17 06:03:46,145 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 188 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:46,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 828 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 06:03:46,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2533 states. [2025-03-17 06:03:46,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2533 to 1439. [2025-03-17 06:03:46,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1327 states have (on average 1.2305953278070836) internal successors, (1633), 1332 states have internal predecessors, (1633), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (88), 83 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-17 06:03:46,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1809 transitions. [2025-03-17 06:03:46,196 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1809 transitions. Word has length 157 [2025-03-17 06:03:46,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:46,197 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 1809 transitions. [2025-03-17 06:03:46,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2025-03-17 06:03:46,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1809 transitions. [2025-03-17 06:03:46,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-17 06:03:46,198 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:46,198 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:46,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-17 06:03:46,199 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:46,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:46,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1148383288, now seen corresponding path program 1 times [2025-03-17 06:03:46,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:46,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943015328] [2025-03-17 06:03:46,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:46,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:46,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:03:46,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:03:46,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:46,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:46,529 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:46,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:46,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943015328] [2025-03-17 06:03:46,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943015328] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:46,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:46,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 06:03:46,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99031079] [2025-03-17 06:03:46,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:46,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:03:46,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:46,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:03:46,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 06:03:46,530 INFO L87 Difference]: Start difference. First operand 1439 states and 1809 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:47,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:47,123 INFO L93 Difference]: Finished difference Result 3037 states and 3838 transitions. [2025-03-17 06:03:47,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:03:47,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2025-03-17 06:03:47,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:47,130 INFO L225 Difference]: With dead ends: 3037 [2025-03-17 06:03:47,130 INFO L226 Difference]: Without dead ends: 1673 [2025-03-17 06:03:47,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:03:47,133 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 240 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:47,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 415 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 06:03:47,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2025-03-17 06:03:47,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1439. [2025-03-17 06:03:47,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1327 states have (on average 1.182366239638282) internal successors, (1569), 1332 states have internal predecessors, (1569), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (88), 83 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-17 06:03:47,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1745 transitions. [2025-03-17 06:03:47,231 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1745 transitions. Word has length 158 [2025-03-17 06:03:47,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:47,231 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 1745 transitions. [2025-03-17 06:03:47,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:47,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1745 transitions. [2025-03-17 06:03:47,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-17 06:03:47,237 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:47,237 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:47,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-17 06:03:47,237 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:47,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:47,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1678353292, now seen corresponding path program 1 times [2025-03-17 06:03:47,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:47,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793605552] [2025-03-17 06:03:47,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:47,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:47,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:03:47,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:03:47,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:47,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:47,934 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:47,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:47,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793605552] [2025-03-17 06:03:47,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793605552] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:47,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:03:47,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-17 06:03:47,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874296496] [2025-03-17 06:03:47,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:47,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 06:03:47,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:47,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 06:03:47,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-03-17 06:03:47,938 INFO L87 Difference]: Start difference. First operand 1439 states and 1745 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:48,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:48,422 INFO L93 Difference]: Finished difference Result 3285 states and 3965 transitions. [2025-03-17 06:03:48,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 06:03:48,422 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2025-03-17 06:03:48,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:48,429 INFO L225 Difference]: With dead ends: 3285 [2025-03-17 06:03:48,429 INFO L226 Difference]: Without dead ends: 1921 [2025-03-17 06:03:48,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2025-03-17 06:03:48,432 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 174 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:48,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 822 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 06:03:48,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2025-03-17 06:03:48,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1625. [2025-03-17 06:03:48,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1625 states, 1513 states have (on average 1.170522141440846) internal successors, (1771), 1518 states have internal predecessors, (1771), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (88), 83 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-17 06:03:48,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1625 states to 1625 states and 1947 transitions. [2025-03-17 06:03:48,495 INFO L78 Accepts]: Start accepts. Automaton has 1625 states and 1947 transitions. Word has length 158 [2025-03-17 06:03:48,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:48,495 INFO L471 AbstractCegarLoop]: Abstraction has 1625 states and 1947 transitions. [2025-03-17 06:03:48,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:48,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1625 states and 1947 transitions. [2025-03-17 06:03:48,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-17 06:03:48,499 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:48,499 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:48,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-17 06:03:48,499 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:48,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:48,500 INFO L85 PathProgramCache]: Analyzing trace with hash 64457043, now seen corresponding path program 1 times [2025-03-17 06:03:48,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:48,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913436724] [2025-03-17 06:03:48,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:48,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:48,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:03:48,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:03:48,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:48,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2025-03-17 06:03:49,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:49,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913436724] [2025-03-17 06:03:49,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913436724] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:03:49,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672814342] [2025-03-17 06:03:49,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:49,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:03:49,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:03:49,044 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:03:49,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 06:03:49,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:03:49,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:03:49,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:49,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:49,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-03-17 06:03:49,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:03:49,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 79 [2025-03-17 06:03:49,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 131 [2025-03-17 06:03:49,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 55 [2025-03-17 06:03:50,345 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:03:50,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 47 [2025-03-17 06:03:50,486 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:50,486 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:03:50,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672814342] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:50,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:03:50,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 19 [2025-03-17 06:03:50,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053161114] [2025-03-17 06:03:50,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:50,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 06:03:50,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:50,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 06:03:50,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2025-03-17 06:03:50,487 INFO L87 Difference]: Start difference. First operand 1625 states and 1947 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:56,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:03:56,970 INFO L93 Difference]: Finished difference Result 5237 states and 6219 transitions. [2025-03-17 06:03:56,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 06:03:56,970 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2025-03-17 06:03:56,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:03:56,981 INFO L225 Difference]: With dead ends: 5237 [2025-03-17 06:03:56,981 INFO L226 Difference]: Without dead ends: 3687 [2025-03-17 06:03:56,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2025-03-17 06:03:56,983 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 228 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2025-03-17 06:03:56,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 1079 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2025-03-17 06:03:56,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2025-03-17 06:03:57,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 2169. [2025-03-17 06:03:57,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2056 states have (on average 1.168774319066148) internal successors, (2403), 2061 states have internal predecessors, (2403), 88 states have call successors, (88), 24 states have call predecessors, (88), 24 states have return successors, (88), 83 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-17 06:03:57,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 2579 transitions. [2025-03-17 06:03:57,106 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 2579 transitions. Word has length 158 [2025-03-17 06:03:57,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:03:57,107 INFO L471 AbstractCegarLoop]: Abstraction has 2169 states and 2579 transitions. [2025-03-17 06:03:57,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:03:57,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 2579 transitions. [2025-03-17 06:03:57,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-17 06:03:57,111 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:03:57,111 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:03:57,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 06:03:57,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-03-17 06:03:57,312 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:03:57,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:03:57,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1709373099, now seen corresponding path program 1 times [2025-03-17 06:03:57,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:03:57,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852848440] [2025-03-17 06:03:57,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:57,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:03:57,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:03:57,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:03:57,380 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:57,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:57,846 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2025-03-17 06:03:57,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:03:57,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852848440] [2025-03-17 06:03:57,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852848440] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:03:57,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931077733] [2025-03-17 06:03:57,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:03:57,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:03:57,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:03:57,848 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:03:57,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 06:03:57,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:03:58,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:03:58,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:03:58,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:03:58,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-17 06:03:58,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:03:58,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 79 [2025-03-17 06:03:58,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 131 [2025-03-17 06:03:58,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 47 [2025-03-17 06:03:59,118 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:03:59,118 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:03:59,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931077733] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:03:59,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:03:59,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 19 [2025-03-17 06:03:59,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399738225] [2025-03-17 06:03:59,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:03:59,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 06:03:59,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:03:59,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 06:03:59,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2025-03-17 06:03:59,119 INFO L87 Difference]: Start difference. First operand 2169 states and 2579 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:05,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:05,551 INFO L93 Difference]: Finished difference Result 6407 states and 7643 transitions. [2025-03-17 06:04:05,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 06:04:05,551 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2025-03-17 06:04:05,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:05,567 INFO L225 Difference]: With dead ends: 6407 [2025-03-17 06:04:05,567 INFO L226 Difference]: Without dead ends: 4857 [2025-03-17 06:04:05,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2025-03-17 06:04:05,571 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 210 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:05,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 1177 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2025-03-17 06:04:05,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4857 states. [2025-03-17 06:04:05,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4857 to 3016. [2025-03-17 06:04:05,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3016 states, 2817 states have (on average 1.1703940362087326) internal successors, (3297), 2827 states have internal predecessors, (3297), 156 states have call successors, (156), 42 states have call predecessors, (156), 42 states have return successors, (156), 146 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-17 06:04:05,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3016 states to 3016 states and 3609 transitions. [2025-03-17 06:04:05,723 INFO L78 Accepts]: Start accepts. Automaton has 3016 states and 3609 transitions. Word has length 158 [2025-03-17 06:04:05,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:05,724 INFO L471 AbstractCegarLoop]: Abstraction has 3016 states and 3609 transitions. [2025-03-17 06:04:05,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:05,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3016 states and 3609 transitions. [2025-03-17 06:04:05,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-17 06:04:05,727 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:05,728 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:05,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 06:04:05,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-17 06:04:05,929 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:05,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:05,930 INFO L85 PathProgramCache]: Analyzing trace with hash 33437236, now seen corresponding path program 1 times [2025-03-17 06:04:05,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:05,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328359542] [2025-03-17 06:04:05,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:05,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:05,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:04:05,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:04:05,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:05,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:06,317 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:06,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:06,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328359542] [2025-03-17 06:04:06,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328359542] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:06,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:06,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-17 06:04:06,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282860854] [2025-03-17 06:04:06,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:06,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 06:04:06,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:06,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 06:04:06,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-03-17 06:04:06,319 INFO L87 Difference]: Start difference. First operand 3016 states and 3609 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:06,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:06,879 INFO L93 Difference]: Finished difference Result 5949 states and 7139 transitions. [2025-03-17 06:04:06,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 06:04:06,880 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2025-03-17 06:04:06,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:06,895 INFO L225 Difference]: With dead ends: 5949 [2025-03-17 06:04:06,895 INFO L226 Difference]: Without dead ends: 3552 [2025-03-17 06:04:06,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2025-03-17 06:04:06,899 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 128 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:06,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 1052 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 06:04:06,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2025-03-17 06:04:07,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3206. [2025-03-17 06:04:07,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3206 states, 3007 states have (on average 1.16627868307283) internal successors, (3507), 3017 states have internal predecessors, (3507), 156 states have call successors, (156), 42 states have call predecessors, (156), 42 states have return successors, (156), 146 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-17 06:04:07,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3206 states to 3206 states and 3819 transitions. [2025-03-17 06:04:07,041 INFO L78 Accepts]: Start accepts. Automaton has 3206 states and 3819 transitions. Word has length 158 [2025-03-17 06:04:07,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:07,041 INFO L471 AbstractCegarLoop]: Abstraction has 3206 states and 3819 transitions. [2025-03-17 06:04:07,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:07,042 INFO L276 IsEmpty]: Start isEmpty. Operand 3206 states and 3819 transitions. [2025-03-17 06:04:07,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-17 06:04:07,046 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:07,046 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:07,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-17 06:04:07,046 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:07,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:07,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1498721407, now seen corresponding path program 1 times [2025-03-17 06:04:07,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:07,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726591782] [2025-03-17 06:04:07,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:07,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:07,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:04:07,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:04:07,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:07,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:07,818 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:07,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:07,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726591782] [2025-03-17 06:04:07,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726591782] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:07,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:07,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 06:04:07,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552581500] [2025-03-17 06:04:07,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:07,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 06:04:07,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:07,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 06:04:07,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:04:07,822 INFO L87 Difference]: Start difference. First operand 3206 states and 3819 transitions. Second operand has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2025-03-17 06:04:08,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:08,173 INFO L93 Difference]: Finished difference Result 5989 states and 7153 transitions. [2025-03-17 06:04:08,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 06:04:08,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 158 [2025-03-17 06:04:08,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:08,185 INFO L225 Difference]: With dead ends: 5989 [2025-03-17 06:04:08,186 INFO L226 Difference]: Without dead ends: 4339 [2025-03-17 06:04:08,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:04:08,190 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 71 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:08,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 676 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 06:04:08,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4339 states. [2025-03-17 06:04:08,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4339 to 3208. [2025-03-17 06:04:08,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3009 states have (on average 1.167165171153207) internal successors, (3512), 3019 states have internal predecessors, (3512), 156 states have call successors, (156), 42 states have call predecessors, (156), 42 states have return successors, (156), 146 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-17 06:04:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3824 transitions. [2025-03-17 06:04:08,308 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3824 transitions. Word has length 158 [2025-03-17 06:04:08,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:08,309 INFO L471 AbstractCegarLoop]: Abstraction has 3208 states and 3824 transitions. [2025-03-17 06:04:08,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2025-03-17 06:04:08,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3824 transitions. [2025-03-17 06:04:08,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-17 06:04:08,311 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:08,311 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:08,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-17 06:04:08,311 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:08,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:08,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1622876831, now seen corresponding path program 1 times [2025-03-17 06:04:08,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:08,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962377251] [2025-03-17 06:04:08,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:08,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:08,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:04:08,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:04:08,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:08,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:08,856 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:08,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:08,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962377251] [2025-03-17 06:04:08,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962377251] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:08,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:08,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 06:04:08,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357221238] [2025-03-17 06:04:08,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:08,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 06:04:08,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:08,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 06:04:08,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-03-17 06:04:08,858 INFO L87 Difference]: Start difference. First operand 3208 states and 3824 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:04:09,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:09,156 INFO L93 Difference]: Finished difference Result 4860 states and 5788 transitions. [2025-03-17 06:04:09,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 06:04:09,157 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 158 [2025-03-17 06:04:09,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:09,163 INFO L225 Difference]: With dead ends: 4860 [2025-03-17 06:04:09,163 INFO L226 Difference]: Without dead ends: 3208 [2025-03-17 06:04:09,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2025-03-17 06:04:09,166 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 82 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:09,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 653 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:04:09,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2025-03-17 06:04:09,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3168. [2025-03-17 06:04:09,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3168 states, 2969 states have (on average 1.1660491748063322) internal successors, (3462), 2979 states have internal predecessors, (3462), 156 states have call successors, (156), 42 states have call predecessors, (156), 42 states have return successors, (156), 146 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-17 06:04:09,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 3774 transitions. [2025-03-17 06:04:09,252 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 3774 transitions. Word has length 158 [2025-03-17 06:04:09,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:09,252 INFO L471 AbstractCegarLoop]: Abstraction has 3168 states and 3774 transitions. [2025-03-17 06:04:09,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:04:09,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 3774 transitions. [2025-03-17 06:04:09,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-17 06:04:09,255 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:09,255 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:09,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-03-17 06:04:09,255 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:09,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:09,255 INFO L85 PathProgramCache]: Analyzing trace with hash -572524908, now seen corresponding path program 1 times [2025-03-17 06:04:09,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:09,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920510822] [2025-03-17 06:04:09,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:09,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:09,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:04:09,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:04:09,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:09,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:09,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:09,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920510822] [2025-03-17 06:04:09,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920510822] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:09,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:09,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 06:04:09,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072447130] [2025-03-17 06:04:09,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:09,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 06:04:09,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:09,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 06:04:09,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:04:09,911 INFO L87 Difference]: Start difference. First operand 3168 states and 3774 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:04:10,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:10,144 INFO L93 Difference]: Finished difference Result 5704 states and 6759 transitions. [2025-03-17 06:04:10,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 06:04:10,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 158 [2025-03-17 06:04:10,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:10,153 INFO L225 Difference]: With dead ends: 5704 [2025-03-17 06:04:10,153 INFO L226 Difference]: Without dead ends: 4092 [2025-03-17 06:04:10,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:04:10,156 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 47 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:10,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 514 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 06:04:10,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4092 states. [2025-03-17 06:04:10,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4092 to 3780. [2025-03-17 06:04:10,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3780 states, 3581 states have (on average 1.1616866796984082) internal successors, (4160), 3591 states have internal predecessors, (4160), 156 states have call successors, (156), 42 states have call predecessors, (156), 42 states have return successors, (156), 146 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-17 06:04:10,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3780 states to 3780 states and 4472 transitions. [2025-03-17 06:04:10,265 INFO L78 Accepts]: Start accepts. Automaton has 3780 states and 4472 transitions. Word has length 158 [2025-03-17 06:04:10,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:10,266 INFO L471 AbstractCegarLoop]: Abstraction has 3780 states and 4472 transitions. [2025-03-17 06:04:10,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:04:10,266 INFO L276 IsEmpty]: Start isEmpty. Operand 3780 states and 4472 transitions. [2025-03-17 06:04:10,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-17 06:04:10,268 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:10,269 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:10,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-17 06:04:10,269 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:10,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:10,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1170285427, now seen corresponding path program 1 times [2025-03-17 06:04:10,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:10,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188915523] [2025-03-17 06:04:10,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:10,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:10,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:04:10,303 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:04:10,303 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:10,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:10,650 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2025-03-17 06:04:10,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:10,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188915523] [2025-03-17 06:04:10,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188915523] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:04:10,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542404212] [2025-03-17 06:04:10,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:10,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:04:10,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:04:10,652 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:04:10,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 06:04:10,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:04:10,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:04:10,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:10,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:10,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-17 06:04:10,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:04:10,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2025-03-17 06:04:10,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:04:10,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2025-03-17 06:04:10,873 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:04:10,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 104 treesize of output 76 [2025-03-17 06:04:11,139 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:04:11,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 105 treesize of output 45 [2025-03-17 06:04:11,205 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:11,205 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:04:11,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542404212] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:11,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:04:11,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2025-03-17 06:04:11,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595102244] [2025-03-17 06:04:11,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:11,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 06:04:11,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:11,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 06:04:11,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2025-03-17 06:04:11,206 INFO L87 Difference]: Start difference. First operand 3780 states and 4472 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:11,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:11,840 INFO L93 Difference]: Finished difference Result 6321 states and 7482 transitions. [2025-03-17 06:04:11,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 06:04:11,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2025-03-17 06:04:11,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:11,849 INFO L225 Difference]: With dead ends: 6321 [2025-03-17 06:04:11,849 INFO L226 Difference]: Without dead ends: 4007 [2025-03-17 06:04:11,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2025-03-17 06:04:11,854 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 188 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:11,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 671 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 06:04:11,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4007 states. [2025-03-17 06:04:12,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4007 to 3345. [2025-03-17 06:04:12,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3345 states, 3146 states have (on average 1.1602034329307056) internal successors, (3650), 3156 states have internal predecessors, (3650), 156 states have call successors, (156), 42 states have call predecessors, (156), 42 states have return successors, (156), 146 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-17 06:04:12,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3345 states to 3345 states and 3962 transitions. [2025-03-17 06:04:12,043 INFO L78 Accepts]: Start accepts. Automaton has 3345 states and 3962 transitions. Word has length 158 [2025-03-17 06:04:12,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:12,043 INFO L471 AbstractCegarLoop]: Abstraction has 3345 states and 3962 transitions. [2025-03-17 06:04:12,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:12,044 INFO L276 IsEmpty]: Start isEmpty. Operand 3345 states and 3962 transitions. [2025-03-17 06:04:12,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-17 06:04:12,047 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:12,048 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:12,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 06:04:12,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:04:12,249 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:12,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:12,250 INFO L85 PathProgramCache]: Analyzing trace with hash -603544715, now seen corresponding path program 1 times [2025-03-17 06:04:12,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:12,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772189980] [2025-03-17 06:04:12,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:12,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:12,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:04:12,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:04:12,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:12,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:12,754 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2025-03-17 06:04:12,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:12,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772189980] [2025-03-17 06:04:12,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772189980] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:04:12,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319216163] [2025-03-17 06:04:12,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:12,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:04:12,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:04:12,757 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:04:12,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 06:04:12,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:04:12,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:04:12,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:12,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:12,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 41 conjuncts are in the unsatisfiable core [2025-03-17 06:04:12,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:04:12,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:04:12,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:04:12,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:04:12,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:04:12,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:04:12,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:04:12,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:04:12,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-17 06:04:12,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2025-03-17 06:04:12,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:04:12,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2025-03-17 06:04:13,023 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:04:13,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 96 treesize of output 68 [2025-03-17 06:04:13,242 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 06:04:13,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 95 treesize of output 35 [2025-03-17 06:04:13,301 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:13,301 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:04:13,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319216163] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:13,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:04:13,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2025-03-17 06:04:13,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168606433] [2025-03-17 06:04:13,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:13,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 06:04:13,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:13,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 06:04:13,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2025-03-17 06:04:13,302 INFO L87 Difference]: Start difference. First operand 3345 states and 3962 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:13,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:13,756 INFO L93 Difference]: Finished difference Result 5811 states and 6867 transitions. [2025-03-17 06:04:13,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 06:04:13,756 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2025-03-17 06:04:13,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:13,764 INFO L225 Difference]: With dead ends: 5811 [2025-03-17 06:04:13,764 INFO L226 Difference]: Without dead ends: 3479 [2025-03-17 06:04:13,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2025-03-17 06:04:13,768 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 149 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:13,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 624 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 06:04:13,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2025-03-17 06:04:13,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 2407. [2025-03-17 06:04:13,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2294 states have (on average 1.1569311246730603) internal successors, (2654), 2299 states have internal predecessors, (2654), 88 states have call successors, (88), 24 states have call predecessors, (88), 24 states have return successors, (88), 83 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-17 06:04:13,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 2830 transitions. [2025-03-17 06:04:13,842 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 2830 transitions. Word has length 158 [2025-03-17 06:04:13,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:13,843 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 2830 transitions. [2025-03-17 06:04:13,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:13,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 2830 transitions. [2025-03-17 06:04:13,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-17 06:04:13,845 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:13,845 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:13,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 06:04:14,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2025-03-17 06:04:14,046 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:14,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:14,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1139265620, now seen corresponding path program 1 times [2025-03-17 06:04:14,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:14,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909163360] [2025-03-17 06:04:14,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:14,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:14,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 06:04:14,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 06:04:14,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:14,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:14,666 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:14,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:14,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909163360] [2025-03-17 06:04:14,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909163360] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:14,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:14,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 06:04:14,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980276865] [2025-03-17 06:04:14,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:14,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 06:04:14,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:14,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 06:04:14,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:04:14,667 INFO L87 Difference]: Start difference. First operand 2407 states and 2830 transitions. Second operand has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2025-03-17 06:04:14,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:14,933 INFO L93 Difference]: Finished difference Result 4867 states and 5723 transitions. [2025-03-17 06:04:14,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 06:04:14,933 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 158 [2025-03-17 06:04:14,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:14,938 INFO L225 Difference]: With dead ends: 4867 [2025-03-17 06:04:14,938 INFO L226 Difference]: Without dead ends: 2535 [2025-03-17 06:04:14,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 06:04:14,941 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 47 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:14,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 736 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:04:14,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2535 states. [2025-03-17 06:04:14,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2535 to 2301. [2025-03-17 06:04:14,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2188 states have (on average 1.1572212065813527) internal successors, (2532), 2193 states have internal predecessors, (2532), 88 states have call successors, (88), 24 states have call predecessors, (88), 24 states have return successors, (88), 83 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-17 06:04:15,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 2708 transitions. [2025-03-17 06:04:15,001 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 2708 transitions. Word has length 158 [2025-03-17 06:04:15,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:15,002 INFO L471 AbstractCegarLoop]: Abstraction has 2301 states and 2708 transitions. [2025-03-17 06:04:15,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2025-03-17 06:04:15,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 2708 transitions. [2025-03-17 06:04:15,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-17 06:04:15,004 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:15,004 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:15,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-03-17 06:04:15,005 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:15,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:15,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1415161338, now seen corresponding path program 1 times [2025-03-17 06:04:15,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:15,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450793276] [2025-03-17 06:04:15,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:15,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:15,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-17 06:04:15,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-17 06:04:15,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:15,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:15,940 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:15,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:15,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450793276] [2025-03-17 06:04:15,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450793276] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:15,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:15,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-17 06:04:15,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460274777] [2025-03-17 06:04:15,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:15,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 06:04:15,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:15,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 06:04:15,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-17 06:04:15,942 INFO L87 Difference]: Start difference. First operand 2301 states and 2708 transitions. Second operand has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:04:16,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:16,662 INFO L93 Difference]: Finished difference Result 4586 states and 5390 transitions. [2025-03-17 06:04:16,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 06:04:16,663 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2025-03-17 06:04:16,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:16,667 INFO L225 Difference]: With dead ends: 4586 [2025-03-17 06:04:16,667 INFO L226 Difference]: Without dead ends: 2360 [2025-03-17 06:04:16,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2025-03-17 06:04:16,670 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 180 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:16,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 978 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 06:04:16,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2025-03-17 06:04:16,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2209. [2025-03-17 06:04:16,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 2096 states have (on average 1.1555343511450382) internal successors, (2422), 2101 states have internal predecessors, (2422), 88 states have call successors, (88), 24 states have call predecessors, (88), 24 states have return successors, (88), 83 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-17 06:04:16,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 2598 transitions. [2025-03-17 06:04:16,731 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 2598 transitions. Word has length 160 [2025-03-17 06:04:16,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:16,732 INFO L471 AbstractCegarLoop]: Abstraction has 2209 states and 2598 transitions. [2025-03-17 06:04:16,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:04:16,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 2598 transitions. [2025-03-17 06:04:16,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-17 06:04:16,734 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:16,734 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:16,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-03-17 06:04:16,734 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:16,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:16,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1101793453, now seen corresponding path program 1 times [2025-03-17 06:04:16,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:16,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56294254] [2025-03-17 06:04:16,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:16,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:16,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-17 06:04:16,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-17 06:04:16,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:16,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:16,862 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2025-03-17 06:04:16,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:16,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56294254] [2025-03-17 06:04:16,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56294254] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:04:16,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963401431] [2025-03-17 06:04:16,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:16,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:04:16,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:04:16,865 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:04:16,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 06:04:17,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-17 06:04:17,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-17 06:04:17,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:17,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:17,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 06:04:17,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:04:17,066 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:17,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:04:17,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963401431] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:17,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:04:17,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 9 [2025-03-17 06:04:17,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242479545] [2025-03-17 06:04:17,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:17,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:04:17,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:17,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:04:17,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-17 06:04:17,067 INFO L87 Difference]: Start difference. First operand 2209 states and 2598 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:17,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:17,130 INFO L93 Difference]: Finished difference Result 2235 states and 2629 transitions. [2025-03-17 06:04:17,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:04:17,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2025-03-17 06:04:17,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:17,135 INFO L225 Difference]: With dead ends: 2235 [2025-03-17 06:04:17,135 INFO L226 Difference]: Without dead ends: 2233 [2025-03-17 06:04:17,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-17 06:04:17,136 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:17,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 710 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 06:04:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2025-03-17 06:04:17,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 2233. [2025-03-17 06:04:17,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2233 states, 2120 states have (on average 1.1537735849056603) internal successors, (2446), 2125 states have internal predecessors, (2446), 88 states have call successors, (88), 24 states have call predecessors, (88), 24 states have return successors, (88), 83 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-17 06:04:17,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2233 states to 2233 states and 2622 transitions. [2025-03-17 06:04:17,213 INFO L78 Accepts]: Start accepts. Automaton has 2233 states and 2622 transitions. Word has length 160 [2025-03-17 06:04:17,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:17,214 INFO L471 AbstractCegarLoop]: Abstraction has 2233 states and 2622 transitions. [2025-03-17 06:04:17,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:17,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2233 states and 2622 transitions. [2025-03-17 06:04:17,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-17 06:04:17,216 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:17,216 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:17,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 06:04:17,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-03-17 06:04:17,417 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:17,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:17,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1765961275, now seen corresponding path program 1 times [2025-03-17 06:04:17,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:17,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720386258] [2025-03-17 06:04:17,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:17,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:17,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-17 06:04:17,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-17 06:04:17,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:17,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:17,838 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:17,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:17,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720386258] [2025-03-17 06:04:17,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720386258] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:17,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:17,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 06:04:17,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131122687] [2025-03-17 06:04:17,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:17,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:04:17,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:17,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:04:17,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 06:04:17,840 INFO L87 Difference]: Start difference. First operand 2233 states and 2622 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:04:18,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:18,112 INFO L93 Difference]: Finished difference Result 4504 states and 5286 transitions. [2025-03-17 06:04:18,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:04:18,113 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2025-03-17 06:04:18,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:18,116 INFO L225 Difference]: With dead ends: 4504 [2025-03-17 06:04:18,116 INFO L226 Difference]: Without dead ends: 2346 [2025-03-17 06:04:18,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:04:18,118 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 70 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:18,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 512 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:04:18,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2025-03-17 06:04:18,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2343. [2025-03-17 06:04:18,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2206 states have (on average 1.1514052583862193) internal successors, (2540), 2213 states have internal predecessors, (2540), 106 states have call successors, (106), 30 states have call predecessors, (106), 30 states have return successors, (106), 99 states have call predecessors, (106), 106 states have call successors, (106) [2025-03-17 06:04:18,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 2752 transitions. [2025-03-17 06:04:18,197 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 2752 transitions. Word has length 160 [2025-03-17 06:04:18,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:18,197 INFO L471 AbstractCegarLoop]: Abstraction has 2343 states and 2752 transitions. [2025-03-17 06:04:18,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:04:18,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 2752 transitions. [2025-03-17 06:04:18,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-17 06:04:18,199 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:18,199 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:18,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-03-17 06:04:18,199 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:18,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:18,200 INFO L85 PathProgramCache]: Analyzing trace with hash -30990084, now seen corresponding path program 1 times [2025-03-17 06:04:18,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:18,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407309837] [2025-03-17 06:04:18,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:18,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:18,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-17 06:04:18,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-17 06:04:18,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:18,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:18,637 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:18,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:18,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407309837] [2025-03-17 06:04:18,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407309837] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:18,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:18,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 06:04:18,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347316938] [2025-03-17 06:04:18,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:18,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 06:04:18,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:18,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 06:04:18,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-03-17 06:04:18,638 INFO L87 Difference]: Start difference. First operand 2343 states and 2752 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:19,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:19,058 INFO L93 Difference]: Finished difference Result 4727 states and 5577 transitions. [2025-03-17 06:04:19,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 06:04:19,058 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2025-03-17 06:04:19,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:19,062 INFO L225 Difference]: With dead ends: 4727 [2025-03-17 06:04:19,063 INFO L226 Difference]: Without dead ends: 2463 [2025-03-17 06:04:19,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2025-03-17 06:04:19,065 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 104 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:19,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1564 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 06:04:19,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2025-03-17 06:04:19,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 2233. [2025-03-17 06:04:19,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2233 states, 2119 states have (on average 1.151958470976876) internal successors, (2441), 2124 states have internal predecessors, (2441), 88 states have call successors, (88), 25 states have call predecessors, (88), 25 states have return successors, (88), 83 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-17 06:04:19,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2233 states to 2233 states and 2617 transitions. [2025-03-17 06:04:19,129 INFO L78 Accepts]: Start accepts. Automaton has 2233 states and 2617 transitions. Word has length 160 [2025-03-17 06:04:19,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:19,129 INFO L471 AbstractCegarLoop]: Abstraction has 2233 states and 2617 transitions. [2025-03-17 06:04:19,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:19,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2233 states and 2617 transitions. [2025-03-17 06:04:19,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-17 06:04:19,131 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:19,132 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:19,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-03-17 06:04:19,132 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:19,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:19,132 INFO L85 PathProgramCache]: Analyzing trace with hash 250583538, now seen corresponding path program 1 times [2025-03-17 06:04:19,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:19,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202036072] [2025-03-17 06:04:19,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:19,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:19,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-17 06:04:19,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-17 06:04:19,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:19,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:19,920 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:19,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:19,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202036072] [2025-03-17 06:04:19,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202036072] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:19,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:19,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-17 06:04:19,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138950118] [2025-03-17 06:04:19,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:19,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 06:04:19,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:19,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 06:04:19,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-17 06:04:19,922 INFO L87 Difference]: Start difference. First operand 2233 states and 2617 transitions. Second operand has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:04:20,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:20,618 INFO L93 Difference]: Finished difference Result 4445 states and 5205 transitions. [2025-03-17 06:04:20,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 06:04:20,618 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2025-03-17 06:04:20,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:20,621 INFO L225 Difference]: With dead ends: 4445 [2025-03-17 06:04:20,621 INFO L226 Difference]: Without dead ends: 2291 [2025-03-17 06:04:20,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2025-03-17 06:04:20,623 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 152 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:20,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1430 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 06:04:20,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2025-03-17 06:04:20,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2141. [2025-03-17 06:04:20,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2141 states, 2027 states have (on average 1.14997533300444) internal successors, (2331), 2032 states have internal predecessors, (2331), 88 states have call successors, (88), 25 states have call predecessors, (88), 25 states have return successors, (88), 83 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-17 06:04:20,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 2507 transitions. [2025-03-17 06:04:20,688 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 2507 transitions. Word has length 160 [2025-03-17 06:04:20,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:20,688 INFO L471 AbstractCegarLoop]: Abstraction has 2141 states and 2507 transitions. [2025-03-17 06:04:20,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:04:20,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 2507 transitions. [2025-03-17 06:04:20,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-17 06:04:20,691 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:20,692 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:20,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-03-17 06:04:20,692 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:20,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:20,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1195567884, now seen corresponding path program 1 times [2025-03-17 06:04:20,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:20,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548509493] [2025-03-17 06:04:20,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:20,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:20,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-17 06:04:20,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-17 06:04:20,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:20,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:21,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:21,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548509493] [2025-03-17 06:04:21,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548509493] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:21,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:21,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 06:04:21,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218036237] [2025-03-17 06:04:21,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:21,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 06:04:21,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:21,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 06:04:21,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-03-17 06:04:21,230 INFO L87 Difference]: Start difference. First operand 2141 states and 2507 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:21,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:21,664 INFO L93 Difference]: Finished difference Result 4335 states and 5104 transitions. [2025-03-17 06:04:21,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 06:04:21,665 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2025-03-17 06:04:21,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:21,668 INFO L225 Difference]: With dead ends: 4335 [2025-03-17 06:04:21,668 INFO L226 Difference]: Without dead ends: 2273 [2025-03-17 06:04:21,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2025-03-17 06:04:21,671 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 111 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:21,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1621 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 06:04:21,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2025-03-17 06:04:21,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2157. [2025-03-17 06:04:21,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2157 states, 2043 states have (on average 1.1488007831620166) internal successors, (2347), 2048 states have internal predecessors, (2347), 88 states have call successors, (88), 25 states have call predecessors, (88), 25 states have return successors, (88), 83 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-17 06:04:21,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 2523 transitions. [2025-03-17 06:04:21,737 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 2523 transitions. Word has length 160 [2025-03-17 06:04:21,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:21,738 INFO L471 AbstractCegarLoop]: Abstraction has 2157 states and 2523 transitions. [2025-03-17 06:04:21,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:21,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 2523 transitions. [2025-03-17 06:04:21,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-17 06:04:21,740 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:21,740 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:21,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2025-03-17 06:04:21,740 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:21,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:21,740 INFO L85 PathProgramCache]: Analyzing trace with hash 601383475, now seen corresponding path program 1 times [2025-03-17 06:04:21,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:21,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573398509] [2025-03-17 06:04:21,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:21,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:21,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-17 06:04:21,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-17 06:04:21,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:21,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:22,186 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:22,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:22,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573398509] [2025-03-17 06:04:22,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573398509] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:22,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:22,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 06:04:22,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600709886] [2025-03-17 06:04:22,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:22,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 06:04:22,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:22,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 06:04:22,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:04:22,187 INFO L87 Difference]: Start difference. First operand 2157 states and 2523 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2025-03-17 06:04:22,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:22,543 INFO L93 Difference]: Finished difference Result 4226 states and 4934 transitions. [2025-03-17 06:04:22,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 06:04:22,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2025-03-17 06:04:22,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:22,548 INFO L225 Difference]: With dead ends: 4226 [2025-03-17 06:04:22,548 INFO L226 Difference]: Without dead ends: 2148 [2025-03-17 06:04:22,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:04:22,551 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 168 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:22,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 623 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 06:04:22,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2025-03-17 06:04:22,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 2027. [2025-03-17 06:04:22,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1938 states have (on average 1.1486068111455108) internal successors, (2226), 1941 states have internal predecessors, (2226), 68 states have call successors, (68), 20 states have call predecessors, (68), 20 states have return successors, (68), 65 states have call predecessors, (68), 68 states have call successors, (68) [2025-03-17 06:04:22,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2362 transitions. [2025-03-17 06:04:22,614 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2362 transitions. Word has length 160 [2025-03-17 06:04:22,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:22,615 INFO L471 AbstractCegarLoop]: Abstraction has 2027 states and 2362 transitions. [2025-03-17 06:04:22,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2025-03-17 06:04:22,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2362 transitions. [2025-03-17 06:04:22,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-03-17 06:04:22,616 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:22,617 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:22,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-03-17 06:04:22,617 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:22,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:22,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1940112401, now seen corresponding path program 1 times [2025-03-17 06:04:22,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:22,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388732226] [2025-03-17 06:04:22,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:22,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:22,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-03-17 06:04:22,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-03-17 06:04:22,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:22,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:23,985 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:23,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:23,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388732226] [2025-03-17 06:04:23,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388732226] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:23,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:23,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2025-03-17 06:04:23,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036943208] [2025-03-17 06:04:23,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:23,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 06:04:23,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:23,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 06:04:23,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2025-03-17 06:04:23,987 INFO L87 Difference]: Start difference. First operand 2027 states and 2362 transitions. Second operand has 18 states, 16 states have (on average 4.0625) internal successors, (65), 18 states have internal predecessors, (65), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2025-03-17 06:04:25,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:25,591 INFO L93 Difference]: Finished difference Result 6159 states and 7076 transitions. [2025-03-17 06:04:25,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-17 06:04:25,592 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.0625) internal successors, (65), 18 states have internal predecessors, (65), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) Word has length 162 [2025-03-17 06:04:25,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:25,597 INFO L225 Difference]: With dead ends: 6159 [2025-03-17 06:04:25,597 INFO L226 Difference]: Without dead ends: 4211 [2025-03-17 06:04:25,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=239, Invalid=1021, Unknown=0, NotChecked=0, Total=1260 [2025-03-17 06:04:25,600 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 566 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:25,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 865 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1839 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-17 06:04:25,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4211 states. [2025-03-17 06:04:25,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4211 to 2341. [2025-03-17 06:04:25,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2341 states, 2216 states have (on average 1.1398916967509025) internal successors, (2526), 2223 states have internal predecessors, (2526), 96 states have call successors, (96), 28 states have call predecessors, (96), 28 states have return successors, (96), 89 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-17 06:04:25,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2341 states to 2341 states and 2718 transitions. [2025-03-17 06:04:25,700 INFO L78 Accepts]: Start accepts. Automaton has 2341 states and 2718 transitions. Word has length 162 [2025-03-17 06:04:25,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:25,701 INFO L471 AbstractCegarLoop]: Abstraction has 2341 states and 2718 transitions. [2025-03-17 06:04:25,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.0625) internal successors, (65), 18 states have internal predecessors, (65), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2025-03-17 06:04:25,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2341 states and 2718 transitions. [2025-03-17 06:04:25,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-03-17 06:04:25,703 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:25,703 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:25,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2025-03-17 06:04:25,703 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:25,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:25,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1052608720, now seen corresponding path program 1 times [2025-03-17 06:04:25,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:25,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105520018] [2025-03-17 06:04:25,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:25,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:25,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-03-17 06:04:25,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-03-17 06:04:25,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:25,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2025-03-17 06:04:25,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:25,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105520018] [2025-03-17 06:04:25,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105520018] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:04:25,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176103553] [2025-03-17 06:04:25,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:25,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:04:25,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:04:25,888 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:04:25,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 06:04:26,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-03-17 06:04:26,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-03-17 06:04:26,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:26,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:26,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 06:04:26,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:04:26,133 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:26,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:04:26,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176103553] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:26,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:04:26,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2025-03-17 06:04:26,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970716431] [2025-03-17 06:04:26,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:26,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 06:04:26,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:26,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 06:04:26,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-03-17 06:04:26,134 INFO L87 Difference]: Start difference. First operand 2341 states and 2718 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:26,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:26,226 INFO L93 Difference]: Finished difference Result 2363 states and 2743 transitions. [2025-03-17 06:04:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 06:04:26,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2025-03-17 06:04:26,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:26,230 INFO L225 Difference]: With dead ends: 2363 [2025-03-17 06:04:26,230 INFO L226 Difference]: Without dead ends: 2361 [2025-03-17 06:04:26,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-03-17 06:04:26,233 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:26,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 835 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 06:04:26,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2025-03-17 06:04:26,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 2329. [2025-03-17 06:04:26,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2204 states have (on average 1.1388384754990926) internal successors, (2510), 2211 states have internal predecessors, (2510), 96 states have call successors, (96), 28 states have call predecessors, (96), 28 states have return successors, (96), 89 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-17 06:04:26,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 2702 transitions. [2025-03-17 06:04:26,331 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 2702 transitions. Word has length 162 [2025-03-17 06:04:26,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:26,333 INFO L471 AbstractCegarLoop]: Abstraction has 2329 states and 2702 transitions. [2025-03-17 06:04:26,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:26,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 2702 transitions. [2025-03-17 06:04:26,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-03-17 06:04:26,336 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:26,336 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:26,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 06:04:26,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2025-03-17 06:04:26,537 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:26,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:26,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2080511247, now seen corresponding path program 1 times [2025-03-17 06:04:26,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:26,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692243049] [2025-03-17 06:04:26,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:26,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:26,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-03-17 06:04:26,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-03-17 06:04:26,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:26,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:27,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:27,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692243049] [2025-03-17 06:04:27,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692243049] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:27,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:27,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 06:04:27,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246897059] [2025-03-17 06:04:27,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:27,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 06:04:27,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:27,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 06:04:27,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:04:27,362 INFO L87 Difference]: Start difference. First operand 2329 states and 2702 transitions. Second operand has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2025-03-17 06:04:27,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:27,798 INFO L93 Difference]: Finished difference Result 6219 states and 7201 transitions. [2025-03-17 06:04:27,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 06:04:27,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2025-03-17 06:04:27,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:27,803 INFO L225 Difference]: With dead ends: 6219 [2025-03-17 06:04:27,804 INFO L226 Difference]: Without dead ends: 4151 [2025-03-17 06:04:27,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:04:27,806 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 56 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:27,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 539 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 06:04:27,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4151 states. [2025-03-17 06:04:27,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4151 to 3859. [2025-03-17 06:04:27,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3859 states, 3734 states have (on average 1.1435457953936796) internal successors, (4270), 3741 states have internal predecessors, (4270), 96 states have call successors, (96), 28 states have call predecessors, (96), 28 states have return successors, (96), 89 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-17 06:04:27,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 4462 transitions. [2025-03-17 06:04:27,933 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 4462 transitions. Word has length 162 [2025-03-17 06:04:27,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:27,934 INFO L471 AbstractCegarLoop]: Abstraction has 3859 states and 4462 transitions. [2025-03-17 06:04:27,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2025-03-17 06:04:27,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 4462 transitions. [2025-03-17 06:04:27,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-17 06:04:27,937 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:27,937 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:27,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2025-03-17 06:04:27,938 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:27,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:27,938 INFO L85 PathProgramCache]: Analyzing trace with hash -88432733, now seen corresponding path program 1 times [2025-03-17 06:04:27,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:27,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352463021] [2025-03-17 06:04:27,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:27,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:27,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-17 06:04:27,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-17 06:04:27,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:27,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:28,235 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:28,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:28,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352463021] [2025-03-17 06:04:28,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352463021] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:28,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:28,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 06:04:28,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004418767] [2025-03-17 06:04:28,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:28,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 06:04:28,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:28,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 06:04:28,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:04:28,237 INFO L87 Difference]: Start difference. First operand 3859 states and 4462 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:28,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:28,593 INFO L93 Difference]: Finished difference Result 5774 states and 6669 transitions. [2025-03-17 06:04:28,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 06:04:28,594 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 163 [2025-03-17 06:04:28,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:28,601 INFO L225 Difference]: With dead ends: 5774 [2025-03-17 06:04:28,601 INFO L226 Difference]: Without dead ends: 5772 [2025-03-17 06:04:28,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2025-03-17 06:04:28,603 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 83 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:28,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1254 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:04:28,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5772 states. [2025-03-17 06:04:28,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5772 to 5751. [2025-03-17 06:04:28,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5751 states, 5567 states have (on average 1.1422669301239448) internal successors, (6359), 5578 states have internal predecessors, (6359), 142 states have call successors, (142), 41 states have call predecessors, (142), 41 states have return successors, (142), 131 states have call predecessors, (142), 142 states have call successors, (142) [2025-03-17 06:04:28,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 6643 transitions. [2025-03-17 06:04:28,785 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 6643 transitions. Word has length 163 [2025-03-17 06:04:28,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:28,785 INFO L471 AbstractCegarLoop]: Abstraction has 5751 states and 6643 transitions. [2025-03-17 06:04:28,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2025-03-17 06:04:28,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 6643 transitions. [2025-03-17 06:04:28,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-17 06:04:28,790 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:04:28,790 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:28,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2025-03-17 06:04:28,790 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:04:28,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:04:28,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1861867522, now seen corresponding path program 1 times [2025-03-17 06:04:28,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:04:28,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926990330] [2025-03-17 06:04:28,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:04:28,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:04:28,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-17 06:04:28,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-17 06:04:28,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:04:28,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:04:29,520 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 06:04:29,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:04:29,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926990330] [2025-03-17 06:04:29,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926990330] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:04:29,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:04:29,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 06:04:29,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398134155] [2025-03-17 06:04:29,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:04:29,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 06:04:29,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:04:29,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 06:04:29,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:04:29,521 INFO L87 Difference]: Start difference. First operand 5751 states and 6643 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:04:30,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:04:30,314 INFO L93 Difference]: Finished difference Result 11466 states and 13240 transitions. [2025-03-17 06:04:30,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 06:04:30,315 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 163 [2025-03-17 06:04:30,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:04:30,317 INFO L225 Difference]: With dead ends: 11466 [2025-03-17 06:04:30,317 INFO L226 Difference]: Without dead ends: 0 [2025-03-17 06:04:30,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-03-17 06:04:30,326 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 82 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 06:04:30,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 796 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 06:04:30,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-17 06:04:30,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-17 06:04:30,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 06:04:30,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 06:04:30,328 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 163 [2025-03-17 06:04:30,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:04:30,328 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 06:04:30,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 06:04:30,328 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-17 06:04:30,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-17 06:04:30,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-17 06:04:30,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2025-03-17 06:04:30,333 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:04:30,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.