./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-17.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-17.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC --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 3893bf360a85f05760b77c740edd1d0464d11dea1da72a67fc941d09eb87c9f1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:45:42,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:45:42,679 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:45:42,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:45:42,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:45:42,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:45:42,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:45:42,733 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:45:42,733 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:45:42,734 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:45:42,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:45:42,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:45:42,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:45:42,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:45:42,736 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:45:42,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:45:42,736 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:45:42,736 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:45:42,737 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:45:42,737 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:45:42,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:45:42,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:45:42,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:45:42,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:45:42,738 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:45:42,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:45:42,738 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:45:42,738 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:45:42,739 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:45:42,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:45:42,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:45:42,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:45:42,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:45:42,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:45:42,740 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:45:42,741 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:45:42,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:45:42,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:45:42,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:45:42,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:45:42,741 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:45:42,742 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:45:42,742 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:45:42,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:45:42,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:45:42,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:45:42,742 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:45:42,742 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:45:42,742 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC 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 -> 3893bf360a85f05760b77c740edd1d0464d11dea1da72a67fc941d09eb87c9f1 [2024-11-23 22:45:43,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:45:43,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:45:43,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:45:43,125 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:45:43,125 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:45:43,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-17.i [2024-11-23 22:45:46,481 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/data/b45183994/9c3553b6df9b4fcca897a29574afb830/FLAGa2c575f15 [2024-11-23 22:45:46,856 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:45:46,857 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-17.i [2024-11-23 22:45:46,878 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/data/b45183994/9c3553b6df9b4fcca897a29574afb830/FLAGa2c575f15 [2024-11-23 22:45:46,894 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/data/b45183994/9c3553b6df9b4fcca897a29574afb830 [2024-11-23 22:45:46,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:45:46,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:45:46,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:45:46,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:45:46,906 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:45:46,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:45:46" (1/1) ... [2024-11-23 22:45:46,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ad7792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:46, skipping insertion in model container [2024-11-23 22:45:46,908 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:45:46" (1/1) ... [2024-11-23 22:45:46,955 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:45:47,110 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-17.i[916,929] [2024-11-23 22:45:47,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:45:47,327 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:45:47,338 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-17.i[916,929] [2024-11-23 22:45:47,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:45:47,463 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:45:47,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47 WrapperNode [2024-11-23 22:45:47,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:45:47,465 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:45:47,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:45:47,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:45:47,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (1/1) ... [2024-11-23 22:45:47,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (1/1) ... [2024-11-23 22:45:47,610 INFO L138 Inliner]: procedures = 26, calls = 108, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 870 [2024-11-23 22:45:47,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:45:47,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:45:47,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:45:47,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:45:47,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (1/1) ... [2024-11-23 22:45:47,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (1/1) ... [2024-11-23 22:45:47,638 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (1/1) ... [2024-11-23 22:45:47,692 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 22:45:47,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (1/1) ... [2024-11-23 22:45:47,694 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (1/1) ... [2024-11-23 22:45:47,719 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (1/1) ... [2024-11-23 22:45:47,721 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (1/1) ... [2024-11-23 22:45:47,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (1/1) ... [2024-11-23 22:45:47,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (1/1) ... [2024-11-23 22:45:47,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (1/1) ... [2024-11-23 22:45:47,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:45:47,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:45:47,752 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:45:47,753 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:45:47,797 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (1/1) ... [2024-11-23 22:45:47,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:45:47,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:45:47,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:45:47,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:45:47,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:45:47,879 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:45:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:45:47,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:45:47,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:45:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:45:48,104 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:45:48,108 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:45:49,951 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-23 22:45:49,951 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:45:49,977 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:45:49,981 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:45:49,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:45:49 BoogieIcfgContainer [2024-11-23 22:45:49,981 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:45:49,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:45:49,987 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:45:49,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:45:49,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:45:46" (1/3) ... [2024-11-23 22:45:49,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1223ada7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:45:49, skipping insertion in model container [2024-11-23 22:45:49,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:45:47" (2/3) ... [2024-11-23 22:45:49,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1223ada7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:45:49, skipping insertion in model container [2024-11-23 22:45:49,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:45:49" (3/3) ... [2024-11-23 22:45:49,998 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-17.i [2024-11-23 22:45:50,015 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:45:50,018 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-17.i that has 2 procedures, 363 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:45:50,110 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:45:50,123 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;@644b24d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:45:50,124 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:45:50,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 363 states, 265 states have (on average 1.6150943396226416) internal successors, (428), 266 states have internal predecessors, (428), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-23 22:45:50,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-23 22:45:50,179 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:45:50,180 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:45:50,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:45:50,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:45:50,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1601304935, now seen corresponding path program 1 times [2024-11-23 22:45:50,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:45:50,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650714368] [2024-11-23 22:45:50,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:45:50,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:45:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:45:51,669 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-23 22:45:51,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:45:51,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650714368] [2024-11-23 22:45:51,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650714368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:45:51,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:45:51,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:45:51,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520534009] [2024-11-23 22:45:51,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:45:51,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:45:51,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:45:51,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:45:51,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:45:51,722 INFO L87 Difference]: Start difference. First operand has 363 states, 265 states have (on average 1.6150943396226416) internal successors, (428), 266 states have internal predecessors, (428), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:45:52,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:45:52,024 INFO L93 Difference]: Finished difference Result 960 states and 1773 transitions. [2024-11-23 22:45:52,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:45:52,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 622 [2024-11-23 22:45:52,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:45:52,058 INFO L225 Difference]: With dead ends: 960 [2024-11-23 22:45:52,058 INFO L226 Difference]: Without dead ends: 600 [2024-11-23 22:45:52,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:45:52,074 INFO L435 NwaCegarLoop]: 676 mSDtfsCounter, 374 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:45:52,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1261 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:45:52,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-23 22:45:52,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 597. [2024-11-23 22:45:52,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 471 states have (on average 1.6284501061571126) internal successors, (767), 472 states have internal predecessors, (767), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123) [2024-11-23 22:45:52,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 1013 transitions. [2024-11-23 22:45:52,303 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 1013 transitions. Word has length 622 [2024-11-23 22:45:52,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:45:52,310 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 1013 transitions. [2024-11-23 22:45:52,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:45:52,310 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 1013 transitions. [2024-11-23 22:45:52,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2024-11-23 22:45:52,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:45:52,336 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:45:52,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 22:45:52,337 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:45:52,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:45:52,338 INFO L85 PathProgramCache]: Analyzing trace with hash 2025195959, now seen corresponding path program 1 times [2024-11-23 22:45:52,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:45:52,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263316400] [2024-11-23 22:45:52,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:45:52,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:45:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:45:53,348 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-23 22:45:53,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:45:53,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263316400] [2024-11-23 22:45:53,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263316400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:45:53,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:45:53,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:45:53,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690298596] [2024-11-23 22:45:53,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:45:53,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:45:53,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:45:53,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:45:53,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:45:53,359 INFO L87 Difference]: Start difference. First operand 597 states and 1013 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:45:53,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:45:53,511 INFO L93 Difference]: Finished difference Result 1522 states and 2566 transitions. [2024-11-23 22:45:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:45:53,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 623 [2024-11-23 22:45:53,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:45:53,531 INFO L225 Difference]: With dead ends: 1522 [2024-11-23 22:45:53,534 INFO L226 Difference]: Without dead ends: 928 [2024-11-23 22:45:53,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:45:53,538 INFO L435 NwaCegarLoop]: 603 mSDtfsCounter, 316 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:45:53,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1193 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:45:53,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-11-23 22:45:53,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 925. [2024-11-23 22:45:53,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 699 states have (on average 1.5851216022889842) internal successors, (1108), 702 states have internal predecessors, (1108), 221 states have call successors, (221), 4 states have call predecessors, (221), 4 states have return successors, (221), 218 states have call predecessors, (221), 221 states have call successors, (221) [2024-11-23 22:45:53,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1550 transitions. [2024-11-23 22:45:53,757 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1550 transitions. Word has length 623 [2024-11-23 22:45:53,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:45:53,761 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1550 transitions. [2024-11-23 22:45:53,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:45:53,765 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1550 transitions. [2024-11-23 22:45:53,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2024-11-23 22:45:53,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:45:53,795 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:45:53,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:45:53,796 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:45:53,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:45:53,801 INFO L85 PathProgramCache]: Analyzing trace with hash -584200155, now seen corresponding path program 1 times [2024-11-23 22:45:53,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:45:53,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978060038] [2024-11-23 22:45:53,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:45:53,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:45:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:45:54,510 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-23 22:45:54,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:45:54,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978060038] [2024-11-23 22:45:54,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978060038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:45:54,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:45:54,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:45:54,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211979165] [2024-11-23 22:45:54,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:45:54,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:45:54,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:45:54,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:45:54,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:45:54,517 INFO L87 Difference]: Start difference. First operand 925 states and 1550 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:45:54,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:45:54,771 INFO L93 Difference]: Finished difference Result 2554 states and 4277 transitions. [2024-11-23 22:45:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:45:54,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 624 [2024-11-23 22:45:54,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:45:54,792 INFO L225 Difference]: With dead ends: 2554 [2024-11-23 22:45:54,792 INFO L226 Difference]: Without dead ends: 1632 [2024-11-23 22:45:54,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:45:54,799 INFO L435 NwaCegarLoop]: 714 mSDtfsCounter, 318 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:45:54,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1294 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:45:54,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2024-11-23 22:45:55,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1628. [2024-11-23 22:45:55,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1254 states have (on average 1.5701754385964912) internal successors, (1969), 1261 states have internal predecessors, (1969), 365 states have call successors, (365), 8 states have call predecessors, (365), 8 states have return successors, (365), 358 states have call predecessors, (365), 365 states have call successors, (365) [2024-11-23 22:45:55,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2699 transitions. [2024-11-23 22:45:55,074 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2699 transitions. Word has length 624 [2024-11-23 22:45:55,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:45:55,077 INFO L471 AbstractCegarLoop]: Abstraction has 1628 states and 2699 transitions. [2024-11-23 22:45:55,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:45:55,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2699 transitions. [2024-11-23 22:45:55,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2024-11-23 22:45:55,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:45:55,099 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:45:55,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 22:45:55,100 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:45:55,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:45:55,103 INFO L85 PathProgramCache]: Analyzing trace with hash 233448295, now seen corresponding path program 1 times [2024-11-23 22:45:55,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:45:55,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884535185] [2024-11-23 22:45:55,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:45:55,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:45:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:45:55,997 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-23 22:45:55,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:45:55,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884535185] [2024-11-23 22:45:55,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884535185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:45:55,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:45:55,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:45:55,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306111393] [2024-11-23 22:45:55,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:45:55,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:45:56,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:45:56,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:45:56,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:45:56,001 INFO L87 Difference]: Start difference. First operand 1628 states and 2699 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:45:57,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:45:57,262 INFO L93 Difference]: Finished difference Result 6259 states and 10236 transitions. [2024-11-23 22:45:57,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:45:57,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 624 [2024-11-23 22:45:57,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:45:57,299 INFO L225 Difference]: With dead ends: 6259 [2024-11-23 22:45:57,299 INFO L226 Difference]: Without dead ends: 4634 [2024-11-23 22:45:57,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:45:57,309 INFO L435 NwaCegarLoop]: 894 mSDtfsCounter, 746 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:45:57,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 2829 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:45:57,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4634 states. [2024-11-23 22:45:57,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4634 to 3036. [2024-11-23 22:45:57,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 2478 states have (on average 1.599273607748184) internal successors, (3963), 2493 states have internal predecessors, (3963), 541 states have call successors, (541), 16 states have call predecessors, (541), 16 states have return successors, (541), 526 states have call predecessors, (541), 541 states have call successors, (541) [2024-11-23 22:45:57,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 5045 transitions. [2024-11-23 22:45:57,710 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 5045 transitions. Word has length 624 [2024-11-23 22:45:57,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:45:57,712 INFO L471 AbstractCegarLoop]: Abstraction has 3036 states and 5045 transitions. [2024-11-23 22:45:57,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:45:57,713 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 5045 transitions. [2024-11-23 22:45:57,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2024-11-23 22:45:57,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:45:57,739 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:45:57,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 22:45:57,740 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:45:57,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:45:57,741 INFO L85 PathProgramCache]: Analyzing trace with hash -909054171, now seen corresponding path program 1 times [2024-11-23 22:45:57,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:45:57,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528117774] [2024-11-23 22:45:57,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:45:57,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:45:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:45:58,873 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-23 22:45:58,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:45:58,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528117774] [2024-11-23 22:45:58,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528117774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:45:58,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:45:58,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:45:58,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994231122] [2024-11-23 22:45:58,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:45:58,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:45:58,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:45:58,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:45:58,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:45:58,877 INFO L87 Difference]: Start difference. First operand 3036 states and 5045 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:45:59,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:45:59,351 INFO L93 Difference]: Finished difference Result 9098 states and 15121 transitions. [2024-11-23 22:45:59,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:45:59,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 624 [2024-11-23 22:45:59,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:45:59,397 INFO L225 Difference]: With dead ends: 9098 [2024-11-23 22:45:59,397 INFO L226 Difference]: Without dead ends: 6065 [2024-11-23 22:45:59,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:45:59,409 INFO L435 NwaCegarLoop]: 600 mSDtfsCounter, 437 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:45:59,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1193 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:45:59,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6065 states. [2024-11-23 22:46:00,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6065 to 6063. [2024-11-23 22:46:00,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6063 states, 4948 states have (on average 1.5941794664510913) internal successors, (7888), 4978 states have internal predecessors, (7888), 1082 states have call successors, (1082), 32 states have call predecessors, (1082), 32 states have return successors, (1082), 1052 states have call predecessors, (1082), 1082 states have call successors, (1082) [2024-11-23 22:46:00,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6063 states to 6063 states and 10052 transitions. [2024-11-23 22:46:00,269 INFO L78 Accepts]: Start accepts. Automaton has 6063 states and 10052 transitions. Word has length 624 [2024-11-23 22:46:00,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:46:00,270 INFO L471 AbstractCegarLoop]: Abstraction has 6063 states and 10052 transitions. [2024-11-23 22:46:00,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:46:00,271 INFO L276 IsEmpty]: Start isEmpty. Operand 6063 states and 10052 transitions. [2024-11-23 22:46:00,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2024-11-23 22:46:00,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:46:00,290 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:46:00,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 22:46:00,290 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:46:00,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:46:00,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1099060364, now seen corresponding path program 1 times [2024-11-23 22:46:00,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:46:00,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295129169] [2024-11-23 22:46:00,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:46:00,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:46:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:46:01,865 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-23 22:46:01,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:46:01,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295129169] [2024-11-23 22:46:01,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295129169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:46:01,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:46:01,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:46:01,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622175288] [2024-11-23 22:46:01,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:46:01,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:46:01,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:46:01,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:46:01,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:46:01,875 INFO L87 Difference]: Start difference. First operand 6063 states and 10052 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:46:03,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:46:03,216 INFO L93 Difference]: Finished difference Result 16456 states and 27427 transitions. [2024-11-23 22:46:03,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:46:03,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 625 [2024-11-23 22:46:03,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:46:03,288 INFO L225 Difference]: With dead ends: 16456 [2024-11-23 22:46:03,288 INFO L226 Difference]: Without dead ends: 10396 [2024-11-23 22:46:03,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:46:03,313 INFO L435 NwaCegarLoop]: 599 mSDtfsCounter, 646 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:46:03,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 2192 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:46:03,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10396 states. [2024-11-23 22:46:04,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10396 to 9434. [2024-11-23 22:46:04,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9434 states, 8222 states have (on average 1.6403551447336415) internal successors, (13487), 8252 states have internal predecessors, (13487), 1177 states have call successors, (1177), 34 states have call predecessors, (1177), 34 states have return successors, (1177), 1147 states have call predecessors, (1177), 1177 states have call successors, (1177) [2024-11-23 22:46:04,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9434 states to 9434 states and 15841 transitions. [2024-11-23 22:46:04,281 INFO L78 Accepts]: Start accepts. Automaton has 9434 states and 15841 transitions. Word has length 625 [2024-11-23 22:46:04,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:46:04,284 INFO L471 AbstractCegarLoop]: Abstraction has 9434 states and 15841 transitions. [2024-11-23 22:46:04,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:46:04,289 INFO L276 IsEmpty]: Start isEmpty. Operand 9434 states and 15841 transitions. [2024-11-23 22:46:04,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-11-23 22:46:04,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:46:04,311 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:46:04,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 22:46:04,311 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:46:04,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:46:04,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1538976950, now seen corresponding path program 1 times [2024-11-23 22:46:04,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:46:04,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220812834] [2024-11-23 22:46:04,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:46:04,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:46:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:46:07,307 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-23 22:46:07,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:46:07,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220812834] [2024-11-23 22:46:07,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220812834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:46:07,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:46:07,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 22:46:07,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093154254] [2024-11-23 22:46:07,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:46:07,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:46:07,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:46:07,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:46:07,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:46:07,312 INFO L87 Difference]: Start difference. First operand 9434 states and 15841 transitions. Second operand has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2024-11-23 22:46:20,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:46:20,428 INFO L93 Difference]: Finished difference Result 57572 states and 94024 transitions. [2024-11-23 22:46:20,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-23 22:46:20,433 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) Word has length 626 [2024-11-23 22:46:20,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:46:20,663 INFO L225 Difference]: With dead ends: 57572 [2024-11-23 22:46:20,663 INFO L226 Difference]: Without dead ends: 50810 [2024-11-23 22:46:20,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2024-11-23 22:46:20,700 INFO L435 NwaCegarLoop]: 1179 mSDtfsCounter, 5922 mSDsluCounter, 5309 mSDsCounter, 0 mSdLazyCounter, 2703 mSolverCounterSat, 1116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5922 SdHoareTripleChecker+Valid, 6488 SdHoareTripleChecker+Invalid, 3819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1116 IncrementalHoareTripleChecker+Valid, 2703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:46:20,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5922 Valid, 6488 Invalid, 3819 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1116 Valid, 2703 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-23 22:46:20,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50810 states. [2024-11-23 22:46:22,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50810 to 18415. [2024-11-23 22:46:22,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18415 states, 16363 states have (on average 1.6341746623479803) internal successors, (26740), 16425 states have internal predecessors, (26740), 1977 states have call successors, (1977), 74 states have call predecessors, (1977), 74 states have return successors, (1977), 1915 states have call predecessors, (1977), 1977 states have call successors, (1977) [2024-11-23 22:46:22,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18415 states to 18415 states and 30694 transitions. [2024-11-23 22:46:22,830 INFO L78 Accepts]: Start accepts. Automaton has 18415 states and 30694 transitions. Word has length 626 [2024-11-23 22:46:22,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:46:22,832 INFO L471 AbstractCegarLoop]: Abstraction has 18415 states and 30694 transitions. [2024-11-23 22:46:22,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2024-11-23 22:46:22,834 INFO L276 IsEmpty]: Start isEmpty. Operand 18415 states and 30694 transitions. [2024-11-23 22:46:22,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-11-23 22:46:22,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:46:22,857 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:46:22,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 22:46:22,857 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:46:22,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:46:22,858 INFO L85 PathProgramCache]: Analyzing trace with hash -634454983, now seen corresponding path program 1 times [2024-11-23 22:46:22,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:46:22,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204336252] [2024-11-23 22:46:22,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:46:22,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:46:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:46:23,240 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-23 22:46:23,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:46:23,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204336252] [2024-11-23 22:46:23,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204336252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:46:23,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:46:23,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:46:23,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159382455] [2024-11-23 22:46:23,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:46:23,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:46:23,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:46:23,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:46:23,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:46:23,246 INFO L87 Difference]: Start difference. First operand 18415 states and 30694 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:46:24,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:46:24,213 INFO L93 Difference]: Finished difference Result 30954 states and 51499 transitions. [2024-11-23 22:46:24,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:46:24,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 626 [2024-11-23 22:46:24,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:46:24,277 INFO L225 Difference]: With dead ends: 30954 [2024-11-23 22:46:24,278 INFO L226 Difference]: Without dead ends: 14332 [2024-11-23 22:46:24,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:46:24,310 INFO L435 NwaCegarLoop]: 837 mSDtfsCounter, 356 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:46:24,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1414 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:46:24,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14332 states. [2024-11-23 22:46:25,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14332 to 14330. [2024-11-23 22:46:25,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14330 states, 12685 states have (on average 1.6275128104059913) internal successors, (20645), 12731 states have internal predecessors, (20645), 1577 states have call successors, (1577), 67 states have call predecessors, (1577), 67 states have return successors, (1577), 1531 states have call predecessors, (1577), 1577 states have call successors, (1577) [2024-11-23 22:46:25,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14330 states to 14330 states and 23799 transitions. [2024-11-23 22:46:25,472 INFO L78 Accepts]: Start accepts. Automaton has 14330 states and 23799 transitions. Word has length 626 [2024-11-23 22:46:25,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:46:25,473 INFO L471 AbstractCegarLoop]: Abstraction has 14330 states and 23799 transitions. [2024-11-23 22:46:25,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:46:25,474 INFO L276 IsEmpty]: Start isEmpty. Operand 14330 states and 23799 transitions. [2024-11-23 22:46:25,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-11-23 22:46:25,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:46:25,492 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:46:25,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 22:46:25,493 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:46:25,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:46:25,494 INFO L85 PathProgramCache]: Analyzing trace with hash 242275321, now seen corresponding path program 1 times [2024-11-23 22:46:25,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:46:25,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117234635] [2024-11-23 22:46:25,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:46:25,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:46:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:46:27,172 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-23 22:46:27,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:46:27,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117234635] [2024-11-23 22:46:27,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117234635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:46:27,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:46:27,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 22:46:27,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119241658] [2024-11-23 22:46:27,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:46:27,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:46:27,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:46:27,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:46:27,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:46:27,181 INFO L87 Difference]: Start difference. First operand 14330 states and 23799 transitions. Second operand has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2024-11-23 22:46:35,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:46:35,986 INFO L93 Difference]: Finished difference Result 66126 states and 108481 transitions. [2024-11-23 22:46:35,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-23 22:46:35,987 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) Word has length 626 [2024-11-23 22:46:35,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:46:36,212 INFO L225 Difference]: With dead ends: 66126 [2024-11-23 22:46:36,213 INFO L226 Difference]: Without dead ends: 55374 [2024-11-23 22:46:36,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2024-11-23 22:46:36,249 INFO L435 NwaCegarLoop]: 1416 mSDtfsCounter, 5306 mSDsluCounter, 6900 mSDsCounter, 0 mSdLazyCounter, 2977 mSolverCounterSat, 912 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5306 SdHoareTripleChecker+Valid, 8316 SdHoareTripleChecker+Invalid, 3889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 912 IncrementalHoareTripleChecker+Valid, 2977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:46:36,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5306 Valid, 8316 Invalid, 3889 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [912 Valid, 2977 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-23 22:46:36,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55374 states. [2024-11-23 22:46:38,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55374 to 30440. [2024-11-23 22:46:38,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30440 states, 26817 states have (on average 1.6267666032740427) internal successors, (43625), 26925 states have internal predecessors, (43625), 3475 states have call successors, (3475), 147 states have call predecessors, (3475), 147 states have return successors, (3475), 3367 states have call predecessors, (3475), 3475 states have call successors, (3475) [2024-11-23 22:46:38,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30440 states to 30440 states and 50575 transitions. [2024-11-23 22:46:38,657 INFO L78 Accepts]: Start accepts. Automaton has 30440 states and 50575 transitions. Word has length 626 [2024-11-23 22:46:38,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:46:38,658 INFO L471 AbstractCegarLoop]: Abstraction has 30440 states and 50575 transitions. [2024-11-23 22:46:38,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2024-11-23 22:46:38,659 INFO L276 IsEmpty]: Start isEmpty. Operand 30440 states and 50575 transitions. [2024-11-23 22:46:38,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2024-11-23 22:46:38,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:46:38,688 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:46:38,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 22:46:38,689 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:46:38,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:46:38,694 INFO L85 PathProgramCache]: Analyzing trace with hash 105354453, now seen corresponding path program 1 times [2024-11-23 22:46:38,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:46:38,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139448076] [2024-11-23 22:46:38,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:46:38,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:46:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:46:42,664 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-23 22:46:42,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:46:42,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139448076] [2024-11-23 22:46:42,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139448076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:46:42,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:46:42,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 22:46:42,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395699883] [2024-11-23 22:46:42,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:46:42,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:46:42,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:46:42,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:46:42,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:46:42,669 INFO L87 Difference]: Start difference. First operand 30440 states and 50575 transitions. Second operand has 15 states, 15 states have (on average 10.333333333333334) internal successors, (155), 15 states have internal predecessors, (155), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2024-11-23 22:47:00,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:47:00,958 INFO L93 Difference]: Finished difference Result 176495 states and 292455 transitions. [2024-11-23 22:47:00,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 22:47:00,959 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.333333333333334) internal successors, (155), 15 states have internal predecessors, (155), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) Word has length 627 [2024-11-23 22:47:00,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:47:01,657 INFO L225 Difference]: With dead ends: 176495 [2024-11-23 22:47:01,657 INFO L226 Difference]: Without dead ends: 154653 [2024-11-23 22:47:01,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=285, Invalid=585, Unknown=0, NotChecked=0, Total=870 [2024-11-23 22:47:01,736 INFO L435 NwaCegarLoop]: 822 mSDtfsCounter, 6597 mSDsluCounter, 6919 mSDsCounter, 0 mSdLazyCounter, 3507 mSolverCounterSat, 767 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6597 SdHoareTripleChecker+Valid, 7741 SdHoareTripleChecker+Invalid, 4274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 767 IncrementalHoareTripleChecker+Valid, 3507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:47:01,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6597 Valid, 7741 Invalid, 4274 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [767 Valid, 3507 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-23 22:47:01,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154653 states. [2024-11-23 22:47:08,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154653 to 72703. [2024-11-23 22:47:08,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72703 states, 65555 states have (on average 1.6539394401647471) internal successors, (108424), 65771 states have internal predecessors, (108424), 6855 states have call successors, (6855), 292 states have call predecessors, (6855), 292 states have return successors, (6855), 6639 states have call predecessors, (6855), 6855 states have call successors, (6855) [2024-11-23 22:47:08,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72703 states to 72703 states and 122134 transitions. [2024-11-23 22:47:08,617 INFO L78 Accepts]: Start accepts. Automaton has 72703 states and 122134 transitions. Word has length 627 [2024-11-23 22:47:08,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:47:08,618 INFO L471 AbstractCegarLoop]: Abstraction has 72703 states and 122134 transitions. [2024-11-23 22:47:08,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.333333333333334) internal successors, (155), 15 states have internal predecessors, (155), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2024-11-23 22:47:08,618 INFO L276 IsEmpty]: Start isEmpty. Operand 72703 states and 122134 transitions. [2024-11-23 22:47:08,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2024-11-23 22:47:08,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:47:08,673 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:47:08,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 22:47:08,673 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:47:08,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:47:08,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1740979942, now seen corresponding path program 1 times [2024-11-23 22:47:08,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:47:08,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174651613] [2024-11-23 22:47:08,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:47:08,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:47:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:47:10,159 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-23 22:47:10,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:47:10,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174651613] [2024-11-23 22:47:10,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174651613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:47:10,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:47:10,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:47:10,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623984051] [2024-11-23 22:47:10,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:47:10,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:47:10,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:47:10,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:47:10,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:47:10,162 INFO L87 Difference]: Start difference. First operand 72703 states and 122134 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:47:19,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:47:19,790 INFO L93 Difference]: Finished difference Result 209573 states and 349746 transitions. [2024-11-23 22:47:19,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:47:19,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 627 [2024-11-23 22:47:19,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:47:20,656 INFO L225 Difference]: With dead ends: 209573 [2024-11-23 22:47:20,656 INFO L226 Difference]: Without dead ends: 150727 [2024-11-23 22:47:20,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:47:20,753 INFO L435 NwaCegarLoop]: 767 mSDtfsCounter, 1569 mSDsluCounter, 2541 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 3308 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:47:20,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 3308 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 22:47:20,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150727 states. [2024-11-23 22:47:24,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150727 to 39701. [2024-11-23 22:47:24,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39701 states, 36077 states have (on average 1.6571222662638245) internal successors, (59784), 36185 states have internal predecessors, (59784), 3475 states have call successors, (3475), 148 states have call predecessors, (3475), 148 states have return successors, (3475), 3367 states have call predecessors, (3475), 3475 states have call successors, (3475) [2024-11-23 22:47:24,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39701 states to 39701 states and 66734 transitions. [2024-11-23 22:47:24,243 INFO L78 Accepts]: Start accepts. Automaton has 39701 states and 66734 transitions. Word has length 627 [2024-11-23 22:47:24,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:47:24,244 INFO L471 AbstractCegarLoop]: Abstraction has 39701 states and 66734 transitions. [2024-11-23 22:47:24,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-23 22:47:24,244 INFO L276 IsEmpty]: Start isEmpty. Operand 39701 states and 66734 transitions. [2024-11-23 22:47:24,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2024-11-23 22:47:24,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:47:24,271 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:47:24,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 22:47:24,271 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:47:24,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:47:24,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2044779780, now seen corresponding path program 1 times [2024-11-23 22:47:24,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:47:24,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045860833] [2024-11-23 22:47:24,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:47:24,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:47:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:47:25,278 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 129 proven. 153 refuted. 0 times theorem prover too weak. 17578 trivial. 0 not checked. [2024-11-23 22:47:25,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:47:25,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045860833] [2024-11-23 22:47:25,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045860833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:47:25,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792622292] [2024-11-23 22:47:25,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:47:25,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:47:25,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:47:25,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:47:25,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:47:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:47:25,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 22:47:25,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:47:27,196 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 8952 proven. 153 refuted. 0 times theorem prover too weak. 8755 trivial. 0 not checked. [2024-11-23 22:47:27,196 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:47:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 129 proven. 153 refuted. 0 times theorem prover too weak. 17578 trivial. 0 not checked. [2024-11-23 22:47:28,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792622292] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:47:28,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:47:28,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-23 22:47:28,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198055644] [2024-11-23 22:47:28,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:47:28,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:47:28,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:47:28,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:47:28,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:47:28,249 INFO L87 Difference]: Start difference. First operand 39701 states and 66734 transitions. Second operand has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 7 states have internal predecessors, (164), 2 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (147), 2 states have call predecessors, (147), 2 states have call successors, (147) [2024-11-23 22:47:32,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:47:32,230 INFO L93 Difference]: Finished difference Result 78645 states and 131769 transitions. [2024-11-23 22:47:32,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:47:32,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 7 states have internal predecessors, (164), 2 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (147), 2 states have call predecessors, (147), 2 states have call successors, (147) Word has length 627 [2024-11-23 22:47:32,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:47:32,535 INFO L225 Difference]: With dead ends: 78645 [2024-11-23 22:47:32,535 INFO L226 Difference]: Without dead ends: 39931 [2024-11-23 22:47:32,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1261 GetRequests, 1251 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:47:32,578 INFO L435 NwaCegarLoop]: 489 mSDtfsCounter, 699 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:47:32,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1277 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:47:32,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39931 states. [2024-11-23 22:47:34,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39931 to 39545. [2024-11-23 22:47:34,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39545 states, 35928 states have (on average 1.6147572923625029) internal successors, (58015), 36036 states have internal predecessors, (58015), 3459 states have call successors, (3459), 157 states have call predecessors, (3459), 157 states have return successors, (3459), 3351 states have call predecessors, (3459), 3459 states have call successors, (3459) [2024-11-23 22:47:35,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39545 states to 39545 states and 64933 transitions. [2024-11-23 22:47:35,035 INFO L78 Accepts]: Start accepts. Automaton has 39545 states and 64933 transitions. Word has length 627 [2024-11-23 22:47:35,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:47:35,036 INFO L471 AbstractCegarLoop]: Abstraction has 39545 states and 64933 transitions. [2024-11-23 22:47:35,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 7 states have internal predecessors, (164), 2 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (147), 2 states have call predecessors, (147), 2 states have call successors, (147) [2024-11-23 22:47:35,036 INFO L276 IsEmpty]: Start isEmpty. Operand 39545 states and 64933 transitions. [2024-11-23 22:47:35,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2024-11-23 22:47:35,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:47:35,055 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:47:35,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 22:47:35,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-23 22:47:35,256 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:47:35,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:47:35,257 INFO L85 PathProgramCache]: Analyzing trace with hash 79195778, now seen corresponding path program 1 times [2024-11-23 22:47:35,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:47:35,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425816813] [2024-11-23 22:47:35,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:47:35,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:47:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:47:36,979 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 222 proven. 60 refuted. 0 times theorem prover too weak. 17578 trivial. 0 not checked. [2024-11-23 22:47:36,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:47:36,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425816813] [2024-11-23 22:47:36,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425816813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:47:36,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380887893] [2024-11-23 22:47:36,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:47:36,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:47:36,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:47:36,982 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:47:36,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:47:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:47:37,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 22:47:37,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:47:38,818 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 6810 proven. 60 refuted. 0 times theorem prover too weak. 10990 trivial. 0 not checked. [2024-11-23 22:47:38,818 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:47:39,528 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 222 proven. 60 refuted. 0 times theorem prover too weak. 17578 trivial. 0 not checked. [2024-11-23 22:47:39,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380887893] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:47:39,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:47:39,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-23 22:47:39,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739588688] [2024-11-23 22:47:39,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:47:39,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:47:39,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:47:39,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:47:39,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:47:39,533 INFO L87 Difference]: Start difference. First operand 39545 states and 64933 transitions. Second operand has 14 states, 12 states have (on average 21.5) internal successors, (258), 14 states have internal predecessors, (258), 7 states have call successors, (141), 3 states have call predecessors, (141), 6 states have return successors, (141), 7 states have call predecessors, (141), 7 states have call successors, (141) [2024-11-23 22:47:42,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:47:42,436 INFO L93 Difference]: Finished difference Result 73109 states and 119633 transitions. [2024-11-23 22:47:42,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 22:47:42,437 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 21.5) internal successors, (258), 14 states have internal predecessors, (258), 7 states have call successors, (141), 3 states have call predecessors, (141), 6 states have return successors, (141), 7 states have call predecessors, (141), 7 states have call successors, (141) Word has length 627 [2024-11-23 22:47:42,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:47:42,555 INFO L225 Difference]: With dead ends: 73109 [2024-11-23 22:47:42,555 INFO L226 Difference]: Without dead ends: 39889 [2024-11-23 22:47:42,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1264 GetRequests, 1248 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=196, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:47:42,605 INFO L435 NwaCegarLoop]: 477 mSDtfsCounter, 1147 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:47:42,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 1242 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:47:42,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39889 states. [2024-11-23 22:47:45,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39889 to 39565. [2024-11-23 22:47:45,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39565 states, 35943 states have (on average 1.6101605319533707) internal successors, (57874), 36051 states have internal predecessors, (57874), 3459 states have call successors, (3459), 162 states have call predecessors, (3459), 162 states have return successors, (3459), 3351 states have call predecessors, (3459), 3459 states have call successors, (3459) [2024-11-23 22:47:45,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39565 states to 39565 states and 64792 transitions. [2024-11-23 22:47:45,193 INFO L78 Accepts]: Start accepts. Automaton has 39565 states and 64792 transitions. Word has length 627 [2024-11-23 22:47:45,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:47:45,194 INFO L471 AbstractCegarLoop]: Abstraction has 39565 states and 64792 transitions. [2024-11-23 22:47:45,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 21.5) internal successors, (258), 14 states have internal predecessors, (258), 7 states have call successors, (141), 3 states have call predecessors, (141), 6 states have return successors, (141), 7 states have call predecessors, (141), 7 states have call successors, (141) [2024-11-23 22:47:45,194 INFO L276 IsEmpty]: Start isEmpty. Operand 39565 states and 64792 transitions. [2024-11-23 22:47:45,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2024-11-23 22:47:45,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:47:45,216 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:47:45,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 22:47:45,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f65e2c0-f6bb-4304-9049-72faad65ad21/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-23 22:47:45,420 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:47:45,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:47:45,421 INFO L85 PathProgramCache]: Analyzing trace with hash 922495382, now seen corresponding path program 1 times [2024-11-23 22:47:45,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:47:45,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306283831] [2024-11-23 22:47:45,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:47:45,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:47:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:47:46,867 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-23 22:47:46,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:47:46,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306283831] [2024-11-23 22:47:46,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306283831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:47:46,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:47:46,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:47:46,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412631727] [2024-11-23 22:47:46,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:47:46,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:47:46,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:47:46,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:47:46,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:47:46,872 INFO L87 Difference]: Start difference. First operand 39565 states and 64792 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95)