./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.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_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/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_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/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_ce501745-50db-4e40-aea4-a9d535500812/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 9c24cf8614122b4c7261c0b63b81d3256f2a3b6068da6913f88528a2638cc015 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:10:15,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:10:15,641 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 02:10:15,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:10:15,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:10:15,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:10:15,679 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:10:15,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:10:15,680 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:10:15,680 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:10:15,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:10:15,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:10:15,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:10:15,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:10:15,681 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:10:15,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:10:15,682 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:10:15,682 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:10:15,682 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:10:15,682 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:10:15,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:10:15,683 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:10:15,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:10:15,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:10:15,683 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:10:15,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:10:15,683 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:10:15,683 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:10:15,683 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:10:15,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:10:15,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:10:15,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:10:15,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:10:15,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:10:15,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:10:15,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:10:15,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:10:15,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:10:15,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:10:15,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:10:15,684 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:10:15,685 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:10:15,685 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:10:15,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:10:15,685 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:10:15,685 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:10:15,685 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:10:15,685 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:10:15,685 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_ce501745-50db-4e40-aea4-a9d535500812/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 -> 9c24cf8614122b4c7261c0b63b81d3256f2a3b6068da6913f88528a2638cc015 [2024-11-24 02:10:16,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:10:16,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:10:16,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:10:16,074 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:10:16,074 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:10:16,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i [2024-11-24 02:10:19,278 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/data/1d20a0844/fb7eac70798d4c40b2c43e968a67d50b/FLAG5452af03e [2024-11-24 02:10:19,780 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:10:19,784 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i [2024-11-24 02:10:19,813 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/data/1d20a0844/fb7eac70798d4c40b2c43e968a67d50b/FLAG5452af03e [2024-11-24 02:10:19,844 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/data/1d20a0844/fb7eac70798d4c40b2c43e968a67d50b [2024-11-24 02:10:19,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:10:19,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:10:19,854 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:10:19,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:10:19,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:10:19,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:10:19" (1/1) ... [2024-11-24 02:10:19,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@721c3bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:19, skipping insertion in model container [2024-11-24 02:10:19,863 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:10:19" (1/1) ... [2024-11-24 02:10:19,920 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:10:20,145 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_ce501745-50db-4e40-aea4-a9d535500812/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i[916,929] [2024-11-24 02:10:20,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:10:20,407 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:10:20,419 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_ce501745-50db-4e40-aea4-a9d535500812/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i[916,929] [2024-11-24 02:10:20,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:10:20,592 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:10:20,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20 WrapperNode [2024-11-24 02:10:20,594 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:10:20,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:10:20,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:10:20,596 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:10:20,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (1/1) ... [2024-11-24 02:10:20,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (1/1) ... [2024-11-24 02:10:20,753 INFO L138 Inliner]: procedures = 26, calls = 107, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 862 [2024-11-24 02:10:20,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:10:20,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:10:20,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:10:20,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:10:20,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (1/1) ... [2024-11-24 02:10:20,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (1/1) ... [2024-11-24 02:10:20,784 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (1/1) ... [2024-11-24 02:10:20,873 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]. [2024-11-24 02:10:20,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (1/1) ... [2024-11-24 02:10:20,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (1/1) ... [2024-11-24 02:10:20,928 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (1/1) ... [2024-11-24 02:10:20,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (1/1) ... [2024-11-24 02:10:20,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (1/1) ... [2024-11-24 02:10:20,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (1/1) ... [2024-11-24 02:10:20,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (1/1) ... [2024-11-24 02:10:20,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:10:20,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:10:20,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:10:20,994 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:10:20,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (1/1) ... [2024-11-24 02:10:21,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:10:21,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:10:21,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:10:21,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:10:21,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:10:21,064 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 02:10:21,064 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 02:10:21,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:10:21,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:10:21,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:10:21,279 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:10:21,281 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:10:23,248 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-24 02:10:23,248 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:10:23,282 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:10:23,283 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 02:10:23,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:10:23 BoogieIcfgContainer [2024-11-24 02:10:23,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:10:23,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:10:23,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:10:23,296 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:10:23,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:10:19" (1/3) ... [2024-11-24 02:10:23,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703f137e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:10:23, skipping insertion in model container [2024-11-24 02:10:23,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:10:20" (2/3) ... [2024-11-24 02:10:23,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703f137e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:10:23, skipping insertion in model container [2024-11-24 02:10:23,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:10:23" (3/3) ... [2024-11-24 02:10:23,302 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-78.i [2024-11-24 02:10:23,327 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:10:23,330 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-78.i that has 2 procedures, 350 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 02:10:23,439 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:10:23,455 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;@22907c01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:10:23,456 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 02:10:23,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 350 states, 253 states have (on average 1.592885375494071) internal successors, (403), 254 states have internal predecessors, (403), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-24 02:10:23,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-24 02:10:23,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:10:23,513 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:10:23,514 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:10:23,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:10:23,522 INFO L85 PathProgramCache]: Analyzing trace with hash 45808961, now seen corresponding path program 1 times [2024-11-24 02:10:23,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:10:23,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324257249] [2024-11-24 02:10:23,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:23,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:10:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 17298 trivial. 0 not checked. [2024-11-24 02:10:24,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:24,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324257249] [2024-11-24 02:10:24,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324257249] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:10:24,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494222829] [2024-11-24 02:10:24,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:24,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:10:24,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:10:24,628 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:10:24,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:10:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:25,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 02:10:25,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:10:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 17298 trivial. 0 not checked. [2024-11-24 02:10:25,354 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:10:25,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494222829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:25,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:10:25,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 02:10:25,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50577920] [2024-11-24 02:10:25,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:25,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 02:10:25,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:25,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 02:10:25,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:10:25,409 INFO L87 Difference]: Start difference. First operand has 350 states, 253 states have (on average 1.592885375494071) internal successors, (403), 254 states have internal predecessors, (403), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) [2024-11-24 02:10:25,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:10:25,507 INFO L93 Difference]: Finished difference Result 685 states and 1256 transitions. [2024-11-24 02:10:25,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 02:10:25,513 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) Word has length 622 [2024-11-24 02:10:25,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:10:25,528 INFO L225 Difference]: With dead ends: 685 [2024-11-24 02:10:25,528 INFO L226 Difference]: Without dead ends: 338 [2024-11-24 02:10:25,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:10:25,541 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:10:25,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:10:25,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-24 02:10:25,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2024-11-24 02:10:25,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 242 states have (on average 1.5743801652892562) internal successors, (381), 242 states have internal predecessors, (381), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-24 02:10:25,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 569 transitions. [2024-11-24 02:10:25,678 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 569 transitions. Word has length 622 [2024-11-24 02:10:25,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:10:25,681 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 569 transitions. [2024-11-24 02:10:25,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) [2024-11-24 02:10:25,682 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 569 transitions. [2024-11-24 02:10:25,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-24 02:10:25,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:10:25,706 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:10:25,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 02:10:25,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 02:10:25,908 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:10:25,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:10:25,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1804090051, now seen corresponding path program 1 times [2024-11-24 02:10:25,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:10:25,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408310162] [2024-11-24 02:10:25,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:25,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:10:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:27,102 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-24 02:10:27,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:27,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408310162] [2024-11-24 02:10:27,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408310162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:27,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:10:27,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:10:27,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877633186] [2024-11-24 02:10:27,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:27,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:10:27,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:27,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:10:27,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:10:27,110 INFO L87 Difference]: Start difference. First operand 338 states and 569 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:27,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:10:27,319 INFO L93 Difference]: Finished difference Result 895 states and 1514 transitions. [2024-11-24 02:10:27,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:10:27,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2024-11-24 02:10:27,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:10:27,334 INFO L225 Difference]: With dead ends: 895 [2024-11-24 02:10:27,334 INFO L226 Difference]: Without dead ends: 560 [2024-11-24 02:10:27,335 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 [2024-11-24 02:10:27,336 INFO L435 NwaCegarLoop]: 576 mSDtfsCounter, 363 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:10:27,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1109 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:10:27,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-24 02:10:27,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 557. [2024-11-24 02:10:27,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 428 states have (on average 1.5981308411214954) internal successors, (684), 429 states have internal predecessors, (684), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-24 02:10:27,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 936 transitions. [2024-11-24 02:10:27,461 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 936 transitions. Word has length 622 [2024-11-24 02:10:27,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:10:27,466 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 936 transitions. [2024-11-24 02:10:27,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:27,466 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 936 transitions. [2024-11-24 02:10:27,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-24 02:10:27,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:10:27,488 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:10:27,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:10:27,489 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:10:27,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:10:27,490 INFO L85 PathProgramCache]: Analyzing trace with hash 656735485, now seen corresponding path program 1 times [2024-11-24 02:10:27,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:10:27,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54370274] [2024-11-24 02:10:27,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:27,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:10:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-24 02:10:28,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:28,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54370274] [2024-11-24 02:10:28,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54370274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:28,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:10:28,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:10:28,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816653049] [2024-11-24 02:10:28,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:28,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:10:28,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:28,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:10:28,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:10:28,724 INFO L87 Difference]: Start difference. First operand 557 states and 936 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2024-11-24 02:10:29,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:10:29,153 INFO L93 Difference]: Finished difference Result 1484 states and 2488 transitions. [2024-11-24 02:10:29,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:10:29,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 622 [2024-11-24 02:10:29,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:10:29,173 INFO L225 Difference]: With dead ends: 1484 [2024-11-24 02:10:29,174 INFO L226 Difference]: Without dead ends: 930 [2024-11-24 02:10:29,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:10:29,176 INFO L435 NwaCegarLoop]: 567 mSDtfsCounter, 801 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:10:29,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1101 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 02:10:29,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2024-11-24 02:10:29,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 928. [2024-11-24 02:10:29,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 703 states have (on average 1.5817923186344238) internal successors, (1112), 704 states have internal predecessors, (1112), 220 states have call successors, (220), 4 states have call predecessors, (220), 4 states have return successors, (220), 219 states have call predecessors, (220), 220 states have call successors, (220) [2024-11-24 02:10:29,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1552 transitions. [2024-11-24 02:10:29,359 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1552 transitions. Word has length 622 [2024-11-24 02:10:29,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:10:29,362 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1552 transitions. [2024-11-24 02:10:29,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2024-11-24 02:10:29,363 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1552 transitions. [2024-11-24 02:10:29,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-24 02:10:29,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:10:29,374 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:10:29,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:10:29,375 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:10:29,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:10:29,376 INFO L85 PathProgramCache]: Analyzing trace with hash 602342587, now seen corresponding path program 1 times [2024-11-24 02:10:29,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:10:29,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254537246] [2024-11-24 02:10:29,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:29,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:10:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-24 02:10:30,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:30,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254537246] [2024-11-24 02:10:30,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254537246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:30,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:10:30,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:10:30,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169441840] [2024-11-24 02:10:30,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:30,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:10:30,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:30,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:10:30,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:10:30,589 INFO L87 Difference]: Start difference. First operand 928 states and 1552 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:33,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:10:33,655 INFO L93 Difference]: Finished difference Result 5209 states and 8685 transitions. [2024-11-24 02:10:33,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 02:10:33,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2024-11-24 02:10:33,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:10:33,683 INFO L225 Difference]: With dead ends: 5209 [2024-11-24 02:10:33,684 INFO L226 Difference]: Without dead ends: 4284 [2024-11-24 02:10:33,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:10:33,693 INFO L435 NwaCegarLoop]: 993 mSDtfsCounter, 2158 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2158 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:10:33,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2158 Valid, 3514 Invalid, 1410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [639 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-24 02:10:33,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4284 states. [2024-11-24 02:10:34,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4284 to 2437. [2024-11-24 02:10:34,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 1822 states have (on average 1.5697036223929748) internal successors, (2860), 1827 states have internal predecessors, (2860), 602 states have call successors, (602), 12 states have call predecessors, (602), 12 states have return successors, (602), 597 states have call predecessors, (602), 602 states have call successors, (602) [2024-11-24 02:10:34,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 4064 transitions. [2024-11-24 02:10:34,276 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 4064 transitions. Word has length 622 [2024-11-24 02:10:34,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:10:34,278 INFO L471 AbstractCegarLoop]: Abstraction has 2437 states and 4064 transitions. [2024-11-24 02:10:34,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:34,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 4064 transitions. [2024-11-24 02:10:34,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-24 02:10:34,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:10:34,290 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:10:34,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:10:34,291 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:10:34,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:10:34,292 INFO L85 PathProgramCache]: Analyzing trace with hash 207975801, now seen corresponding path program 1 times [2024-11-24 02:10:34,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:10:34,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41769212] [2024-11-24 02:10:34,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:34,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:10:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:35,632 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-24 02:10:35,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:35,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41769212] [2024-11-24 02:10:35,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41769212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:35,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:10:35,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:10:35,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216790385] [2024-11-24 02:10:35,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:35,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:10:35,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:35,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:10:35,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:10:35,639 INFO L87 Difference]: Start difference. First operand 2437 states and 4064 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, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:36,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:10:36,019 INFO L93 Difference]: Finished difference Result 5180 states and 8604 transitions. [2024-11-24 02:10:36,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:10:36,020 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, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2024-11-24 02:10:36,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:10:36,040 INFO L225 Difference]: With dead ends: 5180 [2024-11-24 02:10:36,040 INFO L226 Difference]: Without dead ends: 2746 [2024-11-24 02:10:36,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:10:36,048 INFO L435 NwaCegarLoop]: 570 mSDtfsCounter, 45 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:10:36,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2810 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:10:36,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2024-11-24 02:10:36,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2599. [2024-11-24 02:10:36,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 1984 states have (on average 1.5730846774193548) internal successors, (3121), 1989 states have internal predecessors, (3121), 602 states have call successors, (602), 12 states have call predecessors, (602), 12 states have return successors, (602), 597 states have call predecessors, (602), 602 states have call successors, (602) [2024-11-24 02:10:36,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 4325 transitions. [2024-11-24 02:10:36,438 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 4325 transitions. Word has length 622 [2024-11-24 02:10:36,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:10:36,440 INFO L471 AbstractCegarLoop]: Abstraction has 2599 states and 4325 transitions. [2024-11-24 02:10:36,441 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, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:36,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 4325 transitions. [2024-11-24 02:10:36,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-24 02:10:36,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:10:36,449 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:10:36,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:10:36,449 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:10:36,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:10:36,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2092846789, now seen corresponding path program 1 times [2024-11-24 02:10:36,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:10:36,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538411190] [2024-11-24 02:10:36,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:36,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:10:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:36,961 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-24 02:10:36,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:36,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538411190] [2024-11-24 02:10:36,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538411190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:36,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:10:36,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:10:36,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311957751] [2024-11-24 02:10:36,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:36,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:10:36,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:36,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:10:36,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:10:36,968 INFO L87 Difference]: Start difference. First operand 2599 states and 4325 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:37,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:10:37,256 INFO L93 Difference]: Finished difference Result 5195 states and 8647 transitions. [2024-11-24 02:10:37,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:10:37,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2024-11-24 02:10:37,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:10:37,281 INFO L225 Difference]: With dead ends: 5195 [2024-11-24 02:10:37,281 INFO L226 Difference]: Without dead ends: 2599 [2024-11-24 02:10:37,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:10:37,293 INFO L435 NwaCegarLoop]: 566 mSDtfsCounter, 0 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:10:37,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1690 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:10:37,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2024-11-24 02:10:37,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2599. [2024-11-24 02:10:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 1984 states have (on average 1.5640120967741935) internal successors, (3103), 1989 states have internal predecessors, (3103), 602 states have call successors, (602), 12 states have call predecessors, (602), 12 states have return successors, (602), 597 states have call predecessors, (602), 602 states have call successors, (602) [2024-11-24 02:10:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 4307 transitions. [2024-11-24 02:10:37,659 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 4307 transitions. Word has length 622 [2024-11-24 02:10:37,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:10:37,662 INFO L471 AbstractCegarLoop]: Abstraction has 2599 states and 4307 transitions. [2024-11-24 02:10:37,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:37,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 4307 transitions. [2024-11-24 02:10:37,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2024-11-24 02:10:37,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:10:37,671 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:10:37,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 02:10:37,671 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:10:37,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:10:37,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1040344240, now seen corresponding path program 1 times [2024-11-24 02:10:37,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:10:37,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590953953] [2024-11-24 02:10:37,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:37,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:10:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:38,466 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-24 02:10:38,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:38,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590953953] [2024-11-24 02:10:38,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590953953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:38,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:10:38,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:10:38,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452296773] [2024-11-24 02:10:38,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:38,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:10:38,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:38,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:10:38,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:10:38,470 INFO L87 Difference]: Start difference. First operand 2599 states and 4307 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:38,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:10:38,934 INFO L93 Difference]: Finished difference Result 7791 states and 12915 transitions. [2024-11-24 02:10:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:10:38,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 623 [2024-11-24 02:10:38,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:10:38,972 INFO L225 Difference]: With dead ends: 7791 [2024-11-24 02:10:38,972 INFO L226 Difference]: Without dead ends: 5195 [2024-11-24 02:10:38,983 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 [2024-11-24 02:10:38,984 INFO L435 NwaCegarLoop]: 567 mSDtfsCounter, 368 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:10:38,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1129 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:10:38,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5195 states. [2024-11-24 02:10:39,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5195 to 5193. [2024-11-24 02:10:39,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 3964 states have (on average 1.562310797174571) internal successors, (6193), 3974 states have internal predecessors, (6193), 1204 states have call successors, (1204), 24 states have call predecessors, (1204), 24 states have return successors, (1204), 1194 states have call predecessors, (1204), 1204 states have call successors, (1204) [2024-11-24 02:10:39,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 8601 transitions. [2024-11-24 02:10:39,775 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 8601 transitions. Word has length 623 [2024-11-24 02:10:39,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:10:39,777 INFO L471 AbstractCegarLoop]: Abstraction has 5193 states and 8601 transitions. [2024-11-24 02:10:39,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:39,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 8601 transitions. [2024-11-24 02:10:39,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2024-11-24 02:10:39,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:10:39,788 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:10:39,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 02:10:39,789 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:10:39,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:10:39,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1024825522, now seen corresponding path program 1 times [2024-11-24 02:10:39,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:10:39,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957232401] [2024-11-24 02:10:39,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:39,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:10:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:40,599 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-24 02:10:40,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:40,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957232401] [2024-11-24 02:10:40,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957232401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:40,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:10:40,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:10:40,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762488483] [2024-11-24 02:10:40,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:40,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:10:40,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:40,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:10:40,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:10:40,607 INFO L87 Difference]: Start difference. First operand 5193 states and 8601 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:41,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:10:41,785 INFO L93 Difference]: Finished difference Result 12998 states and 21607 transitions. [2024-11-24 02:10:41,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:10:41,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 623 [2024-11-24 02:10:41,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:10:41,852 INFO L225 Difference]: With dead ends: 12998 [2024-11-24 02:10:41,852 INFO L226 Difference]: Without dead ends: 7808 [2024-11-24 02:10:41,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:10:41,875 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 580 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:10:41,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1661 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 02:10:41,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7808 states. [2024-11-24 02:10:42,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7808 to 7536. [2024-11-24 02:10:42,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7536 states, 6211 states have (on average 1.6068265979713412) internal successors, (9980), 6221 states have internal predecessors, (9980), 1298 states have call successors, (1298), 26 states have call predecessors, (1298), 26 states have return successors, (1298), 1288 states have call predecessors, (1298), 1298 states have call successors, (1298) [2024-11-24 02:10:42,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7536 states to 7536 states and 12576 transitions. [2024-11-24 02:10:42,985 INFO L78 Accepts]: Start accepts. Automaton has 7536 states and 12576 transitions. Word has length 623 [2024-11-24 02:10:42,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:10:42,987 INFO L471 AbstractCegarLoop]: Abstraction has 7536 states and 12576 transitions. [2024-11-24 02:10:42,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:42,987 INFO L276 IsEmpty]: Start isEmpty. Operand 7536 states and 12576 transitions. [2024-11-24 02:10:42,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2024-11-24 02:10:42,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:10:42,998 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:10:42,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 02:10:42,999 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:10:43,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:10:43,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1323127035, now seen corresponding path program 1 times [2024-11-24 02:10:43,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:10:43,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335129246] [2024-11-24 02:10:43,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:43,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:10:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:43,788 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-24 02:10:43,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:43,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335129246] [2024-11-24 02:10:43,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335129246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:43,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:10:43,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:10:43,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868857220] [2024-11-24 02:10:43,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:43,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:10:43,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:43,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:10:43,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:10:43,794 INFO L87 Difference]: Start difference. First operand 7536 states and 12576 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:45,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:10:45,268 INFO L93 Difference]: Finished difference Result 18890 states and 31177 transitions. [2024-11-24 02:10:45,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:10:45,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 624 [2024-11-24 02:10:45,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:10:45,332 INFO L225 Difference]: With dead ends: 18890 [2024-11-24 02:10:45,332 INFO L226 Difference]: Without dead ends: 13178 [2024-11-24 02:10:45,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:10:45,353 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 618 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:10:45,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1688 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 02:10:45,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13178 states. [2024-11-24 02:10:46,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13178 to 12922. [2024-11-24 02:10:46,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12922 states, 10369 states have (on average 1.5749831227697946) internal successors, (16331), 10389 states have internal predecessors, (16331), 2502 states have call successors, (2502), 50 states have call predecessors, (2502), 50 states have return successors, (2502), 2482 states have call predecessors, (2502), 2502 states have call successors, (2502) [2024-11-24 02:10:46,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12922 states to 12922 states and 21335 transitions. [2024-11-24 02:10:46,836 INFO L78 Accepts]: Start accepts. Automaton has 12922 states and 21335 transitions. Word has length 624 [2024-11-24 02:10:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:10:46,838 INFO L471 AbstractCegarLoop]: Abstraction has 12922 states and 21335 transitions. [2024-11-24 02:10:46,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:46,839 INFO L276 IsEmpty]: Start isEmpty. Operand 12922 states and 21335 transitions. [2024-11-24 02:10:46,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2024-11-24 02:10:46,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:10:46,849 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:10:46,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 02:10:46,849 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:10:46,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:10:46,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1785606739, now seen corresponding path program 1 times [2024-11-24 02:10:46,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:10:46,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983226549] [2024-11-24 02:10:46,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:46,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:10:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:48,088 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-24 02:10:48,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:48,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983226549] [2024-11-24 02:10:48,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983226549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:48,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:10:48,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 02:10:48,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983890645] [2024-11-24 02:10:48,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:48,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:10:48,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:48,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:10:48,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:10:48,092 INFO L87 Difference]: Start difference. First operand 12922 states and 21335 transitions. Second operand has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:50,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:10:50,399 INFO L93 Difference]: Finished difference Result 35806 states and 58607 transitions. [2024-11-24 02:10:50,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 02:10:50,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 625 [2024-11-24 02:10:50,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:10:50,513 INFO L225 Difference]: With dead ends: 35806 [2024-11-24 02:10:50,514 INFO L226 Difference]: Without dead ends: 25104 [2024-11-24 02:10:50,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:10:50,553 INFO L435 NwaCegarLoop]: 1075 mSDtfsCounter, 1220 mSDsluCounter, 3825 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 4900 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:10:50,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 4900 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 02:10:50,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25104 states. [2024-11-24 02:10:53,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25104 to 24018. [2024-11-24 02:10:53,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24018 states, 19009 states have (on average 1.5604713556736283) internal successors, (29663), 19049 states have internal predecessors, (29663), 4910 states have call successors, (4910), 98 states have call predecessors, (4910), 98 states have return successors, (4910), 4870 states have call predecessors, (4910), 4910 states have call successors, (4910) [2024-11-24 02:10:53,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24018 states to 24018 states and 39483 transitions. [2024-11-24 02:10:53,396 INFO L78 Accepts]: Start accepts. Automaton has 24018 states and 39483 transitions. Word has length 625 [2024-11-24 02:10:53,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:10:53,397 INFO L471 AbstractCegarLoop]: Abstraction has 24018 states and 39483 transitions. [2024-11-24 02:10:53,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:53,398 INFO L276 IsEmpty]: Start isEmpty. Operand 24018 states and 39483 transitions. [2024-11-24 02:10:53,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2024-11-24 02:10:53,531 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:10:53,532 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:10:53,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 02:10:53,532 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:10:53,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:10:53,533 INFO L85 PathProgramCache]: Analyzing trace with hash 2116333547, now seen corresponding path program 1 times [2024-11-24 02:10:53,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:10:53,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896268940] [2024-11-24 02:10:53,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:53,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:10:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-24 02:10:55,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:55,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896268940] [2024-11-24 02:10:55,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896268940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:55,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:10:55,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:10:55,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247534318] [2024-11-24 02:10:55,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:55,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:10:55,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:55,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:10:55,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:10:55,377 INFO L87 Difference]: Start difference. First operand 24018 states and 39483 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:10:57,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:10:57,621 INFO L93 Difference]: Finished difference Result 47294 states and 77257 transitions. [2024-11-24 02:10:57,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:10:57,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 625 [2024-11-24 02:10:57,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:10:57,744 INFO L225 Difference]: With dead ends: 47294 [2024-11-24 02:10:57,744 INFO L226 Difference]: Without dead ends: 25100 [2024-11-24 02:10:57,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:10:57,799 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 572 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:10:57,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1661 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 02:10:57,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25100 states. [2024-11-24 02:11:00,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25100 to 24162. [2024-11-24 02:11:00,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24162 states, 19153 states have (on average 1.5543779042447659) internal successors, (29771), 19193 states have internal predecessors, (29771), 4910 states have call successors, (4910), 98 states have call predecessors, (4910), 98 states have return successors, (4910), 4870 states have call predecessors, (4910), 4910 states have call successors, (4910) [2024-11-24 02:11:00,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24162 states to 24162 states and 39591 transitions. [2024-11-24 02:11:00,526 INFO L78 Accepts]: Start accepts. Automaton has 24162 states and 39591 transitions. Word has length 625 [2024-11-24 02:11:00,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:11:00,527 INFO L471 AbstractCegarLoop]: Abstraction has 24162 states and 39591 transitions. [2024-11-24 02:11:00,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:11:00,527 INFO L276 IsEmpty]: Start isEmpty. Operand 24162 states and 39591 transitions. [2024-11-24 02:11:00,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-11-24 02:11:00,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:11:00,538 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:11:00,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 02:11:00,538 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:11:00,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:00,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1968114848, now seen corresponding path program 1 times [2024-11-24 02:11:00,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:00,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301561521] [2024-11-24 02:11:00,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:00,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-24 02:11:01,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:11:01,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301561521] [2024-11-24 02:11:01,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301561521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:11:01,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:11:01,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:11:01,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979599573] [2024-11-24 02:11:01,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:11:01,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:11:01,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:11:01,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:11:01,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:11:01,871 INFO L87 Difference]: Start difference. First operand 24162 states and 39591 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:11:04,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:11:04,809 INFO L93 Difference]: Finished difference Result 56934 states and 92994 transitions. [2024-11-24 02:11:04,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:11:04,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 626 [2024-11-24 02:11:04,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:11:05,035 INFO L225 Difference]: With dead ends: 56934 [2024-11-24 02:11:05,035 INFO L226 Difference]: Without dead ends: 35064 [2024-11-24 02:11:05,111 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 [2024-11-24 02:11:05,113 INFO L435 NwaCegarLoop]: 601 mSDtfsCounter, 621 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:11:05,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 2128 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 02:11:05,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35064 states. [2024-11-24 02:11:08,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35064 to 33548. [2024-11-24 02:11:08,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33548 states, 26083 states have (on average 1.549016600851129) internal successors, (40403), 26143 states have internal predecessors, (40403), 7318 states have call successors, (7318), 146 states have call predecessors, (7318), 146 states have return successors, (7318), 7258 states have call predecessors, (7318), 7318 states have call successors, (7318) [2024-11-24 02:11:09,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33548 states to 33548 states and 55039 transitions. [2024-11-24 02:11:09,113 INFO L78 Accepts]: Start accepts. Automaton has 33548 states and 55039 transitions. Word has length 626 [2024-11-24 02:11:09,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:11:09,114 INFO L471 AbstractCegarLoop]: Abstraction has 33548 states and 55039 transitions. [2024-11-24 02:11:09,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:11:09,114 INFO L276 IsEmpty]: Start isEmpty. Operand 33548 states and 55039 transitions. [2024-11-24 02:11:09,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-24 02:11:09,126 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:11:09,126 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:11:09,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 02:11:09,127 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:11:09,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:09,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1934633301, now seen corresponding path program 1 times [2024-11-24 02:11:09,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:09,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614915943] [2024-11-24 02:11:09,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:09,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:10,383 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 66 proven. 213 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-11-24 02:11:10,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:11:10,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614915943] [2024-11-24 02:11:10,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614915943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:11:10,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736848306] [2024-11-24 02:11:10,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:10,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:11:10,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:11:10,388 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:11:10,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 02:11:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:10,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 02:11:10,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:11:12,013 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 8805 proven. 147 refuted. 0 times theorem prover too weak. 8532 trivial. 0 not checked. [2024-11-24 02:11:12,013 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:11:13,047 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 132 proven. 147 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-11-24 02:11:13,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736848306] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:11:13,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:11:13,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2024-11-24 02:11:13,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813488957] [2024-11-24 02:11:13,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:11:13,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 02:11:13,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:11:13,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 02:11:13,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-24 02:11:13,056 INFO L87 Difference]: Start difference. First operand 33548 states and 55039 transitions. Second operand has 10 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 4 states have call successors, (214), 2 states have call predecessors, (214), 4 states have return successors, (216), 4 states have call predecessors, (216), 4 states have call successors, (216) [2024-11-24 02:11:17,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:11:17,886 INFO L93 Difference]: Finished difference Result 89756 states and 146021 transitions. [2024-11-24 02:11:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 02:11:17,886 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 4 states have call successors, (214), 2 states have call predecessors, (214), 4 states have return successors, (216), 4 states have call predecessors, (216), 4 states have call successors, (216) Word has length 631 [2024-11-24 02:11:17,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:11:18,156 INFO L225 Difference]: With dead ends: 89756 [2024-11-24 02:11:18,156 INFO L226 Difference]: Without dead ends: 56544 [2024-11-24 02:11:18,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1280 GetRequests, 1260 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=308, Unknown=0, NotChecked=0, Total=462 [2024-11-24 02:11:18,245 INFO L435 NwaCegarLoop]: 460 mSDtfsCounter, 2396 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:11:18,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 1462 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 02:11:18,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56544 states. [2024-11-24 02:11:23,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56544 to 55926. [2024-11-24 02:11:23,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55926 states, 45795 states have (on average 1.5571132219674637) internal successors, (71308), 45963 states have internal predecessors, (71308), 9694 states have call successors, (9694), 436 states have call predecessors, (9694), 436 states have return successors, (9694), 9526 states have call predecessors, (9694), 9694 states have call successors, (9694) [2024-11-24 02:11:23,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55926 states to 55926 states and 90696 transitions. [2024-11-24 02:11:23,436 INFO L78 Accepts]: Start accepts. Automaton has 55926 states and 90696 transitions. Word has length 631 [2024-11-24 02:11:23,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:11:23,437 INFO L471 AbstractCegarLoop]: Abstraction has 55926 states and 90696 transitions. [2024-11-24 02:11:23,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 4 states have call successors, (214), 2 states have call predecessors, (214), 4 states have return successors, (216), 4 states have call predecessors, (216), 4 states have call successors, (216) [2024-11-24 02:11:23,437 INFO L276 IsEmpty]: Start isEmpty. Operand 55926 states and 90696 transitions. [2024-11-24 02:11:23,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2024-11-24 02:11:23,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:11:23,462 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:11:23,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 02:11:23,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce501745-50db-4e40-aea4-a9d535500812/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-24 02:11:23,663 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:11:23,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:23,664 INFO L85 PathProgramCache]: Analyzing trace with hash 512200890, now seen corresponding path program 1 times [2024-11-24 02:11:23,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:23,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757961909] [2024-11-24 02:11:23,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:23,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:24,172 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-24 02:11:24,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:11:24,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757961909] [2024-11-24 02:11:24,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757961909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:11:24,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:11:24,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:11:24,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314165978] [2024-11-24 02:11:24,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:11:24,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:11:24,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:11:24,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:11:24,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:11:24,177 INFO L87 Difference]: Start difference. First operand 55926 states and 90696 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:11:28,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:11:28,702 INFO L93 Difference]: Finished difference Result 112448 states and 181432 transitions. [2024-11-24 02:11:28,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:11:28,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 632 [2024-11-24 02:11:28,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:11:28,983 INFO L225 Difference]: With dead ends: 112448 [2024-11-24 02:11:28,983 INFO L226 Difference]: Without dead ends: 59352 [2024-11-24 02:11:29,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:11:29,111 INFO L435 NwaCegarLoop]: 873 mSDtfsCounter, 727 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:11:29,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1528 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 02:11:29,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59352 states. [2024-11-24 02:11:34,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59352 to 58918. [2024-11-24 02:11:34,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58918 states, 47274 states have (on average 1.5380335914033083) internal successors, (72709), 47442 states have internal predecessors, (72709), 10918 states have call successors, (10918), 725 states have call predecessors, (10918), 725 states have return successors, (10918), 10750 states have call predecessors, (10918), 10918 states have call successors, (10918) [2024-11-24 02:11:34,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58918 states to 58918 states and 94545 transitions. [2024-11-24 02:11:34,924 INFO L78 Accepts]: Start accepts. Automaton has 58918 states and 94545 transitions. Word has length 632 [2024-11-24 02:11:34,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:11:34,924 INFO L471 AbstractCegarLoop]: Abstraction has 58918 states and 94545 transitions. [2024-11-24 02:11:34,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:11:34,925 INFO L276 IsEmpty]: Start isEmpty. Operand 58918 states and 94545 transitions. [2024-11-24 02:11:35,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2024-11-24 02:11:35,158 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:11:35,159 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:11:35,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 02:11:35,159 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:11:35,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:35,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1983184386, now seen corresponding path program 1 times [2024-11-24 02:11:35,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:35,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672024046] [2024-11-24 02:11:35,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:35,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:35,648 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-24 02:11:35,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:11:35,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672024046] [2024-11-24 02:11:35,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672024046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:11:35,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:11:35,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:11:35,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551347156] [2024-11-24 02:11:35,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:11:35,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:11:35,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:11:35,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:11:35,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:11:35,654 INFO L87 Difference]: Start difference. First operand 58918 states and 94545 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-24 02:11:41,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:11:41,247 INFO L93 Difference]: Finished difference Result 153390 states and 245825 transitions. [2024-11-24 02:11:41,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:11:41,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 632 [2024-11-24 02:11:41,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:11:41,635 INFO L225 Difference]: With dead ends: 153390 [2024-11-24 02:11:41,636 INFO L226 Difference]: Without dead ends: 98488 [2024-11-24 02:11:41,783 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 [2024-11-24 02:11:41,783 INFO L435 NwaCegarLoop]: 739 mSDtfsCounter, 260 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:11:41,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1250 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:11:41,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98488 states.