./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/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_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/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 64bit --witnessprinter.graph.data.programhash 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:05:13,928 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:05:14,002 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 00:05:14,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:05:14,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:05:14,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:05:14,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:05:14,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:05:14,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:05:14,050 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:05:14,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:05:14,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:05:14,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:05:14,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:05:14,052 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:05:14,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:05:14,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:05:14,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:05:14,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:05:14,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:05:14,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:05:14,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:05:14,054 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:05:14,054 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:05:14,055 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:05:14,055 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:05:14,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:05:14,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:05:14,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:05:14,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:05:14,056 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:05:14,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:05:14,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:05:14,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:05:14,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:05:14,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:05:14,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:05:14,058 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:05:14,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:05:14,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:05:14,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:05:14,058 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:05:14,058 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:05:14,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:05:14,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:05:14,059 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_7604c600-da28-4d49-9e1d-c14e534957a7/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2024-11-24 00:05:14,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:05:14,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:05:14,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:05:14,426 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:05:14,427 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:05:14,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2024-11-24 00:05:17,564 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/data/524ddf6d9/7d01f42d616a470a91fc25a8a526f51c/FLAG4162d8bce [2024-11-24 00:05:18,392 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:05:18,394 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2024-11-24 00:05:18,444 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/data/524ddf6d9/7d01f42d616a470a91fc25a8a526f51c/FLAG4162d8bce [2024-11-24 00:05:18,645 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/data/524ddf6d9/7d01f42d616a470a91fc25a8a526f51c [2024-11-24 00:05:18,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:05:18,650 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:05:18,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:05:18,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:05:18,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:05:18,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:05:18" (1/1) ... [2024-11-24 00:05:18,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73794b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:18, skipping insertion in model container [2024-11-24 00:05:18,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:05:18" (1/1) ... [2024-11-24 00:05:18,775 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:05:20,654 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_7604c600-da28-4d49-9e1d-c14e534957a7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2024-11-24 00:05:20,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:05:20,794 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:05:20,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5577] [2024-11-24 00:05:20,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5584] [2024-11-24 00:05:21,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5925-5926] [2024-11-24 00:05:21,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5954-5955] [2024-11-24 00:05:21,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7805] [2024-11-24 00:05:21,312 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_7604c600-da28-4d49-9e1d-c14e534957a7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2024-11-24 00:05:21,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:05:21,527 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:05:21,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21 WrapperNode [2024-11-24 00:05:21,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:05:21,530 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:05:21,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:05:21,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:05:21,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (1/1) ... [2024-11-24 00:05:21,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (1/1) ... [2024-11-24 00:05:21,837 INFO L138 Inliner]: procedures = 262, calls = 1371, calls flagged for inlining = 122, calls inlined = 117, statements flattened = 4063 [2024-11-24 00:05:21,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:05:21,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:05:21,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:05:21,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:05:21,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (1/1) ... [2024-11-24 00:05:21,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (1/1) ... [2024-11-24 00:05:21,883 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (1/1) ... [2024-11-24 00:05:22,844 INFO L175 MemorySlicer]: Split 748 memory accesses to 15 slices as follows [2, 4, 557, 7, 15, 4, 38, 5, 2, 10, 9, 24, 43, 9, 19]. 74 percent of accesses are in the largest equivalence class. The 57 initializations are split as follows [2, 4, 0, 0, 15, 4, 0, 4, 0, 10, 9, 0, 0, 9, 0]. The 400 writes are split as follows [0, 0, 289, 2, 0, 0, 32, 0, 1, 0, 0, 17, 43, 0, 16]. [2024-11-24 00:05:22,845 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (1/1) ... [2024-11-24 00:05:22,845 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (1/1) ... [2024-11-24 00:05:23,005 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (1/1) ... [2024-11-24 00:05:23,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (1/1) ... [2024-11-24 00:05:23,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (1/1) ... [2024-11-24 00:05:23,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (1/1) ... [2024-11-24 00:05:23,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (1/1) ... [2024-11-24 00:05:23,194 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:05:23,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:05:23,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:05:23,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:05:23,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (1/1) ... [2024-11-24 00:05:23,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:05:23,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:05:23,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:05:23,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:05:23,284 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2024-11-24 00:05:23,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2024-11-24 00:05:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2024-11-24 00:05:23,285 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2024-11-24 00:05:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-24 00:05:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-24 00:05:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-24 00:05:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-24 00:05:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-24 00:05:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-24 00:05:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-24 00:05:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-24 00:05:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-24 00:05:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-24 00:05:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-11-24 00:05:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-11-24 00:05:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-11-24 00:05:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-11-24 00:05:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-11-24 00:05:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 00:05:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 00:05:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 00:05:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 00:05:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 00:05:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 00:05:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 00:05:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-24 00:05:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-24 00:05:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-24 00:05:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-24 00:05:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-24 00:05:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-24 00:05:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-24 00:05:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-24 00:05:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-24 00:05:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-24 00:05:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2024-11-24 00:05:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2024-11-24 00:05:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 00:05:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 00:05:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-24 00:05:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-24 00:05:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset_after_host_error [2024-11-24 00:05:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset_after_host_error [2024-11-24 00:05:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-24 00:05:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-24 00:05:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-24 00:05:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-24 00:05:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 00:05:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 00:05:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-24 00:05:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-24 00:05:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2024-11-24 00:05:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2024-11-24 00:05:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-24 00:05:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-24 00:05:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-24 00:05:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-24 00:05:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2024-11-24 00:05:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2024-11-24 00:05:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-11-24 00:05:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-11-24 00:05:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2024-11-24 00:05:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2024-11-24 00:05:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-11-24 00:05:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-11-24 00:05:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2024-11-24 00:05:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2024-11-24 00:05:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2024-11-24 00:05:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2024-11-24 00:05:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2024-11-24 00:05:23,296 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2024-11-24 00:05:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:05:23,296 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:05:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2024-11-24 00:05:23,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2024-11-24 00:05:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-24 00:05:23,297 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-24 00:05:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2024-11-24 00:05:23,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2024-11-24 00:05:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2024-11-24 00:05:23,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2024-11-24 00:05:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2024-11-24 00:05:23,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2024-11-24 00:05:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2024-11-24 00:05:23,298 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2024-11-24 00:05:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:05:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-24 00:05:23,300 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-24 00:05:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2024-11-24 00:05:23,300 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2024-11-24 00:05:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2024-11-24 00:05:23,301 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2024-11-24 00:05:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 00:05:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 00:05:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 00:05:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 00:05:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 00:05:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 00:05:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 00:05:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 00:05:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 00:05:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-24 00:05:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-24 00:05:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-24 00:05:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-24 00:05:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-24 00:05:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-24 00:05:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-11-24 00:05:23,302 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-11-24 00:05:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-24 00:05:23,302 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-24 00:05:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-24 00:05:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-24 00:05:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-11-24 00:05:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-11-24 00:05:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2024-11-24 00:05:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2024-11-24 00:05:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2024-11-24 00:05:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2024-11-24 00:05:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2024-11-24 00:05:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2024-11-24 00:05:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:05:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 00:05:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 00:05:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 00:05:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 00:05:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 00:05:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 00:05:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 00:05:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-24 00:05:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-24 00:05:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-24 00:05:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-24 00:05:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-24 00:05:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-24 00:05:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-24 00:05:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-24 00:05:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-24 00:05:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-24 00:05:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2024-11-24 00:05:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2024-11-24 00:05:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-24 00:05:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-24 00:05:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-24 00:05:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-24 00:05:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-24 00:05:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-24 00:05:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-24 00:05:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-24 00:05:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-24 00:05:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-24 00:05:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-24 00:05:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-24 00:05:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-24 00:05:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-24 00:05:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-24 00:05:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-24 00:05:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-24 00:05:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-24 00:05:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-11-24 00:05:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-11-24 00:05:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-11-24 00:05:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-11-24 00:05:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-11-24 00:05:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2024-11-24 00:05:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2024-11-24 00:05:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-24 00:05:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-24 00:05:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2024-11-24 00:05:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2024-11-24 00:05:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2024-11-24 00:05:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2024-11-24 00:05:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2024-11-24 00:05:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2024-11-24 00:05:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 00:05:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 00:05:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 00:05:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 00:05:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 00:05:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 00:05:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 00:05:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-24 00:05:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-24 00:05:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-24 00:05:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-24 00:05:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-24 00:05:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-24 00:05:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-24 00:05:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-24 00:05:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioctl [2024-11-24 00:05:23,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioctl [2024-11-24 00:05:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2024-11-24 00:05:23,311 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2024-11-24 00:05:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:05:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:05:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:05:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:05:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:05:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 00:05:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 00:05:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 00:05:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 00:05:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 00:05:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-24 00:05:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-24 00:05:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-24 00:05:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-24 00:05:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-24 00:05:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-24 00:05:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-24 00:05:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-11-24 00:05:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-11-24 00:05:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-24 00:05:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-24 00:05:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-24 00:05:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-24 00:05:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-24 00:05:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-24 00:05:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-24 00:05:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-24 00:05:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-24 00:05:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-11-24 00:05:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2024-11-24 00:05:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2024-11-24 00:05:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2024-11-24 00:05:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2024-11-24 00:05:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2024-11-24 00:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-24 00:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-24 00:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-24 00:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-24 00:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-24 00:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-24 00:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-24 00:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-24 00:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-24 00:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-11-24 00:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2024-11-24 00:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2024-11-24 00:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2024-11-24 00:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2024-11-24 00:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2024-11-24 00:05:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-24 00:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-24 00:05:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-24 00:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-24 00:05:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2024-11-24 00:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2024-11-24 00:05:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-11-24 00:05:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-11-24 00:05:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:05:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:05:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:05:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:05:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:05:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 00:05:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 00:05:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 00:05:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 00:05:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 00:05:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-24 00:05:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-24 00:05:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-24 00:05:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-24 00:05:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-24 00:05:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-24 00:05:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-24 00:05:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2024-11-24 00:05:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2024-11-24 00:05:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2024-11-24 00:05:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2024-11-24 00:05:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-24 00:05:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-24 00:05:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2024-11-24 00:05:23,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2024-11-24 00:05:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-24 00:05:23,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-24 00:05:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2024-11-24 00:05:23,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2024-11-24 00:05:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 00:05:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2024-11-24 00:05:23,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2024-11-24 00:05:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-24 00:05:23,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-24 00:05:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2024-11-24 00:05:23,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2024-11-24 00:05:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:05:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-24 00:05:23,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-24 00:05:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 00:05:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 00:05:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 00:05:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 00:05:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 00:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 00:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 00:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 00:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 00:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-24 00:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-24 00:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-24 00:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-24 00:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-24 00:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-24 00:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-11-24 00:05:23,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-11-24 00:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2024-11-24 00:05:23,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2024-11-24 00:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2024-11-24 00:05:23,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2024-11-24 00:05:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2024-11-24 00:05:23,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2024-11-24 00:05:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2024-11-24 00:05:23,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2024-11-24 00:05:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-11-24 00:05:23,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-11-24 00:05:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-24 00:05:23,322 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-24 00:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2024-11-24 00:05:23,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2024-11-24 00:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2024-11-24 00:05:23,323 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2024-11-24 00:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2024-11-24 00:05:23,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2024-11-24 00:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2024-11-24 00:05:23,323 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2024-11-24 00:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_change_mtu [2024-11-24 00:05:23,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_change_mtu [2024-11-24 00:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-24 00:05:23,323 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-24 00:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 00:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 00:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 00:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 00:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 00:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-24 00:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-24 00:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-24 00:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-24 00:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2024-11-24 00:05:23,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2024-11-24 00:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2024-11-24 00:05:23,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2024-11-24 00:05:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2024-11-24 00:05:23,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2024-11-24 00:05:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:05:23,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:05:24,435 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:05:24,438 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:05:25,834 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 00:05:41,074 INFO L? ?]: Removed 2081 outVars from TransFormulas that were not future-live. [2024-11-24 00:05:41,076 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:05:41,163 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:05:41,166 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:05:41,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:05:41 BoogieIcfgContainer [2024-11-24 00:05:41,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:05:41,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:05:41,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:05:41,183 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:05:41,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:05:18" (1/3) ... [2024-11-24 00:05:41,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5af246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:05:41, skipping insertion in model container [2024-11-24 00:05:41,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:21" (2/3) ... [2024-11-24 00:05:41,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5af246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:05:41, skipping insertion in model container [2024-11-24 00:05:41,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:05:41" (3/3) ... [2024-11-24 00:05:41,190 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2024-11-24 00:05:41,209 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:05:41,214 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i that has 100 procedures, 1858 locations, 1 initial locations, 31 loop locations, and 1 error locations. [2024-11-24 00:05:41,360 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:05:41,379 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;@4742e8dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:05:41,380 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:05:41,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 1787 states, 1324 states have (on average 1.3678247734138973) internal successors, (1811), 1361 states have internal predecessors, (1811), 379 states have call successors, (379), 85 states have call predecessors, (379), 84 states have return successors, (371), 369 states have call predecessors, (371), 371 states have call successors, (371) [2024-11-24 00:05:41,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 00:05:41,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:41,434 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:41,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:41,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:41,441 INFO L85 PathProgramCache]: Analyzing trace with hash -643662921, now seen corresponding path program 1 times [2024-11-24 00:05:41,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:05:41,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587356558] [2024-11-24 00:05:41,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:41,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:05:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-24 00:05:49,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:05:49,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587356558] [2024-11-24 00:05:49,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587356558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:05:49,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132637910] [2024-11-24 00:05:49,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:49,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:05:49,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:05:49,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:05:49,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:05:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:55,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 3201 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:05:55,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:05:55,654 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-24 00:05:55,654 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:05:55,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132637910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:05:55,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:05:55,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:05:55,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468891348] [2024-11-24 00:05:55,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:05:55,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:05:55,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:05:55,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:05:55,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:05:55,692 INFO L87 Difference]: Start difference. First operand has 1787 states, 1324 states have (on average 1.3678247734138973) internal successors, (1811), 1361 states have internal predecessors, (1811), 379 states have call successors, (379), 85 states have call predecessors, (379), 84 states have return successors, (371), 369 states have call predecessors, (371), 371 states have call successors, (371) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:05:55,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:55,931 INFO L93 Difference]: Finished difference Result 3563 states and 5176 transitions. [2024-11-24 00:05:55,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:05:55,937 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2024-11-24 00:05:55,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:55,981 INFO L225 Difference]: With dead ends: 3563 [2024-11-24 00:05:55,982 INFO L226 Difference]: Without dead ends: 1760 [2024-11-24 00:05:56,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 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 00:05:56,003 INFO L435 NwaCegarLoop]: 2514 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, 2514 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 00:05:56,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2514 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:05:56,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2024-11-24 00:05:56,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1760. [2024-11-24 00:05:56,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1307 states have (on average 1.3366488140780413) internal successors, (1747), 1333 states have internal predecessors, (1747), 369 states have call successors, (369), 84 states have call predecessors, (369), 83 states have return successors, (368), 366 states have call predecessors, (368), 368 states have call successors, (368) [2024-11-24 00:05:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2484 transitions. [2024-11-24 00:05:56,230 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2484 transitions. Word has length 121 [2024-11-24 00:05:56,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:56,231 INFO L471 AbstractCegarLoop]: Abstraction has 1760 states and 2484 transitions. [2024-11-24 00:05:56,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:05:56,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2484 transitions. [2024-11-24 00:05:56,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 00:05:56,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:56,247 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:56,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:05:56,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:05:56,451 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:56,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:56,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1419284655, now seen corresponding path program 1 times [2024-11-24 00:05:56,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:05:56,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526836434] [2024-11-24 00:05:56,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:56,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:02,880 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 00:06:02,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:02,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526836434] [2024-11-24 00:06:02,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526836434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:02,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:02,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:06:02,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49106419] [2024-11-24 00:06:02,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:02,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:06:02,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:02,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:06:02,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:06:02,884 INFO L87 Difference]: Start difference. First operand 1760 states and 2484 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:06:03,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:03,714 INFO L93 Difference]: Finished difference Result 5241 states and 7421 transitions. [2024-11-24 00:06:03,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:06:03,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2024-11-24 00:06:03,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:03,754 INFO L225 Difference]: With dead ends: 5241 [2024-11-24 00:06:03,754 INFO L226 Difference]: Without dead ends: 3502 [2024-11-24 00:06:03,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:06:03,765 INFO L435 NwaCegarLoop]: 2781 mSDtfsCounter, 2463 mSDsluCounter, 8003 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2464 SdHoareTripleChecker+Valid, 10784 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:03,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2464 Valid, 10784 Invalid, 39 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:06:03,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2024-11-24 00:06:03,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 3493. [2024-11-24 00:06:03,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3493 states, 2595 states have (on average 1.336801541425819) internal successors, (3469), 2651 states have internal predecessors, (3469), 731 states have call successors, (731), 167 states have call predecessors, (731), 166 states have return successors, (742), 722 states have call predecessors, (742), 730 states have call successors, (742) [2024-11-24 00:06:04,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3493 states to 3493 states and 4942 transitions. [2024-11-24 00:06:04,015 INFO L78 Accepts]: Start accepts. Automaton has 3493 states and 4942 transitions. Word has length 121 [2024-11-24 00:06:04,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:04,017 INFO L471 AbstractCegarLoop]: Abstraction has 3493 states and 4942 transitions. [2024-11-24 00:06:04,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:06:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3493 states and 4942 transitions. [2024-11-24 00:06:04,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-24 00:06:04,032 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:04,033 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:04,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:06:04,033 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:04,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:04,033 INFO L85 PathProgramCache]: Analyzing trace with hash 825130840, now seen corresponding path program 1 times [2024-11-24 00:06:04,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:04,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967025167] [2024-11-24 00:06:04,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:04,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:10,240 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 00:06:10,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:10,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967025167] [2024-11-24 00:06:10,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967025167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:10,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:10,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:06:10,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854904995] [2024-11-24 00:06:10,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:10,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:06:10,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:10,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:06:10,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:06:10,245 INFO L87 Difference]: Start difference. First operand 3493 states and 4942 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:06:11,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:11,089 INFO L93 Difference]: Finished difference Result 10449 states and 14846 transitions. [2024-11-24 00:06:11,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:06:11,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 122 [2024-11-24 00:06:11,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:11,152 INFO L225 Difference]: With dead ends: 10449 [2024-11-24 00:06:11,152 INFO L226 Difference]: Without dead ends: 6977 [2024-11-24 00:06:11,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:06:11,176 INFO L435 NwaCegarLoop]: 2610 mSDtfsCounter, 2466 mSDsluCounter, 7661 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 10271 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:11,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 10271 Invalid, 37 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:06:11,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6977 states. [2024-11-24 00:06:11,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6977 to 6964. [2024-11-24 00:06:11,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6964 states, 5177 states have (on average 1.3364883136951902) internal successors, (6919), 5288 states have internal predecessors, (6919), 1454 states have call successors, (1454), 333 states have call predecessors, (1454), 332 states have return successors, (1507), 1438 states have call predecessors, (1507), 1453 states have call successors, (1507) [2024-11-24 00:06:11,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6964 states to 6964 states and 9880 transitions. [2024-11-24 00:06:11,588 INFO L78 Accepts]: Start accepts. Automaton has 6964 states and 9880 transitions. Word has length 122 [2024-11-24 00:06:11,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:11,588 INFO L471 AbstractCegarLoop]: Abstraction has 6964 states and 9880 transitions. [2024-11-24 00:06:11,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:06:11,589 INFO L276 IsEmpty]: Start isEmpty. Operand 6964 states and 9880 transitions. [2024-11-24 00:06:11,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-24 00:06:11,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:11,597 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:11,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:06:11,598 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:11,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:11,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1674685650, now seen corresponding path program 1 times [2024-11-24 00:06:11,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:11,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976482034] [2024-11-24 00:06:11,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:11,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 00:06:17,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:17,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976482034] [2024-11-24 00:06:17,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976482034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:17,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:17,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:06:17,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127680012] [2024-11-24 00:06:17,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:17,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:06:17,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:17,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:06:17,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:06:17,772 INFO L87 Difference]: Start difference. First operand 6964 states and 9880 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:06:18,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:18,823 INFO L93 Difference]: Finished difference Result 20877 states and 29762 transitions. [2024-11-24 00:06:18,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:06:18,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 123 [2024-11-24 00:06:18,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:18,964 INFO L225 Difference]: With dead ends: 20877 [2024-11-24 00:06:18,964 INFO L226 Difference]: Without dead ends: 13934 [2024-11-24 00:06:19,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:06:19,007 INFO L435 NwaCegarLoop]: 2481 mSDtfsCounter, 2468 mSDsluCounter, 7403 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2469 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:19,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2469 Valid, 9884 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:06:19,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13934 states. [2024-11-24 00:06:19,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13934 to 13911. [2024-11-24 00:06:19,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13911 states, 10346 states have (on average 1.3360719118499904) internal successors, (13823), 10566 states have internal predecessors, (13823), 2899 states have call successors, (2899), 666 states have call predecessors, (2899), 665 states have return successors, (3074), 2870 states have call predecessors, (3074), 2898 states have call successors, (3074) [2024-11-24 00:06:19,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13911 states to 13911 states and 19796 transitions. [2024-11-24 00:06:19,880 INFO L78 Accepts]: Start accepts. Automaton has 13911 states and 19796 transitions. Word has length 123 [2024-11-24 00:06:19,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:19,881 INFO L471 AbstractCegarLoop]: Abstraction has 13911 states and 19796 transitions. [2024-11-24 00:06:19,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:06:19,881 INFO L276 IsEmpty]: Start isEmpty. Operand 13911 states and 19796 transitions. [2024-11-24 00:06:19,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-24 00:06:19,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:19,888 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:19,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:06:19,889 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:19,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:19,889 INFO L85 PathProgramCache]: Analyzing trace with hash 34567579, now seen corresponding path program 1 times [2024-11-24 00:06:19,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:19,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103079559] [2024-11-24 00:06:19,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:19,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:26,992 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 00:06:26,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:26,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103079559] [2024-11-24 00:06:26,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103079559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:26,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:26,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:06:26,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627766411] [2024-11-24 00:06:26,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:26,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:06:26,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:26,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:06:26,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:06:26,997 INFO L87 Difference]: Start difference. First operand 13911 states and 19796 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:06:28,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:28,819 INFO L93 Difference]: Finished difference Result 41302 states and 59054 transitions. [2024-11-24 00:06:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:06:28,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 124 [2024-11-24 00:06:28,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:29,073 INFO L225 Difference]: With dead ends: 41302 [2024-11-24 00:06:29,073 INFO L226 Difference]: Without dead ends: 27412 [2024-11-24 00:06:29,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:06:29,158 INFO L435 NwaCegarLoop]: 2481 mSDtfsCounter, 2469 mSDsluCounter, 7403 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2470 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:29,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2470 Valid, 9884 Invalid, 37 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:06:29,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27412 states. [2024-11-24 00:06:30,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27412 to 27370. [2024-11-24 00:06:30,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27370 states, 20344 states have (on average 1.3338576484467164) internal successors, (27136), 20771 states have internal predecessors, (27136), 5703 states have call successors, (5703), 1323 states have call predecessors, (5703), 1322 states have return successors, (6204), 5650 states have call predecessors, (6204), 5702 states have call successors, (6204) [2024-11-24 00:06:30,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27370 states to 27370 states and 39043 transitions. [2024-11-24 00:06:30,573 INFO L78 Accepts]: Start accepts. Automaton has 27370 states and 39043 transitions. Word has length 124 [2024-11-24 00:06:30,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:30,574 INFO L471 AbstractCegarLoop]: Abstraction has 27370 states and 39043 transitions. [2024-11-24 00:06:30,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:06:30,576 INFO L276 IsEmpty]: Start isEmpty. Operand 27370 states and 39043 transitions. [2024-11-24 00:06:30,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-24 00:06:30,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:30,584 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:30,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:06:30,584 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:30,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:30,586 INFO L85 PathProgramCache]: Analyzing trace with hash 773862880, now seen corresponding path program 1 times [2024-11-24 00:06:30,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:30,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522688991] [2024-11-24 00:06:30,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:30,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:37,686 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-24 00:06:37,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:37,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522688991] [2024-11-24 00:06:37,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522688991] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:06:37,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959468414] [2024-11-24 00:06:37,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:37,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:37,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:37,691 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:06:37,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:06:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:44,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 3312 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:06:44,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-24 00:06:44,928 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:06:44,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959468414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:44,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:06:44,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-24 00:06:44,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713225528] [2024-11-24 00:06:44,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:44,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:44,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:44,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:44,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:06:44,930 INFO L87 Difference]: Start difference. First operand 27370 states and 39043 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:06:45,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:45,615 INFO L93 Difference]: Finished difference Result 27389 states and 39077 transitions. [2024-11-24 00:06:45,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:45,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 134 [2024-11-24 00:06:45,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:45,963 INFO L225 Difference]: With dead ends: 27389 [2024-11-24 00:06:45,963 INFO L226 Difference]: Without dead ends: 27386 [2024-11-24 00:06:45,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:06:45,978 INFO L435 NwaCegarLoop]: 2483 mSDtfsCounter, 0 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4961 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:45,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4961 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:06:46,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27386 states. [2024-11-24 00:06:47,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27386 to 27386. [2024-11-24 00:06:47,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27386 states, 20360 states have (on average 1.3335952848722987) internal successors, (27152), 20787 states have internal predecessors, (27152), 5703 states have call successors, (5703), 1323 states have call predecessors, (5703), 1322 states have return successors, (6204), 5650 states have call predecessors, (6204), 5702 states have call successors, (6204) [2024-11-24 00:06:47,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27386 states to 27386 states and 39059 transitions. [2024-11-24 00:06:47,837 INFO L78 Accepts]: Start accepts. Automaton has 27386 states and 39059 transitions. Word has length 134 [2024-11-24 00:06:47,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:47,838 INFO L471 AbstractCegarLoop]: Abstraction has 27386 states and 39059 transitions. [2024-11-24 00:06:47,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:06:47,839 INFO L276 IsEmpty]: Start isEmpty. Operand 27386 states and 39059 transitions. [2024-11-24 00:06:47,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-24 00:06:47,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:47,848 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:47,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:06:48,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:48,053 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:48,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:48,054 INFO L85 PathProgramCache]: Analyzing trace with hash 114280293, now seen corresponding path program 1 times [2024-11-24 00:06:48,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:48,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705187996] [2024-11-24 00:06:48,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:48,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:54,586 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-24 00:06:54,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:54,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705187996] [2024-11-24 00:06:54,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705187996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:06:54,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047086364] [2024-11-24 00:06:54,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:54,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:54,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:54,589 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:06:54,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:07:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:01,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 3317 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:07:01,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:07:02,054 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 00:07:02,057 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:07:02,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047086364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:07:02,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:07:02,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-24 00:07:02,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864498587] [2024-11-24 00:07:02,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:07:02,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:07:02,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:02,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:07:02,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:07:02,060 INFO L87 Difference]: Start difference. First operand 27386 states and 39059 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:07:04,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:07:04,651 INFO L93 Difference]: Finished difference Result 68398 states and 97663 transitions. [2024-11-24 00:07:04,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:07:04,653 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 136 [2024-11-24 00:07:04,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:07:04,946 INFO L225 Difference]: With dead ends: 68398 [2024-11-24 00:07:04,946 INFO L226 Difference]: Without dead ends: 41033 [2024-11-24 00:07:05,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:07:05,079 INFO L435 NwaCegarLoop]: 3621 mSDtfsCounter, 2503 mSDsluCounter, 16932 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2507 SdHoareTripleChecker+Valid, 20553 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:07:05,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2507 Valid, 20553 Invalid, 81 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:07:05,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41033 states. [2024-11-24 00:07:07,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41033 to 40884. [2024-11-24 00:07:07,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40884 states, 30397 states have (on average 1.3335526532223574) internal successors, (40536), 31043 states have internal predecessors, (40536), 8503 states have call successors, (8503), 1976 states have call predecessors, (8503), 1983 states have return successors, (9418), 8422 states have call predecessors, (9418), 8502 states have call successors, (9418) [2024-11-24 00:07:07,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40884 states to 40884 states and 58457 transitions. [2024-11-24 00:07:07,769 INFO L78 Accepts]: Start accepts. Automaton has 40884 states and 58457 transitions. Word has length 136 [2024-11-24 00:07:07,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:07:07,770 INFO L471 AbstractCegarLoop]: Abstraction has 40884 states and 58457 transitions. [2024-11-24 00:07:07,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:07:07,771 INFO L276 IsEmpty]: Start isEmpty. Operand 40884 states and 58457 transitions. [2024-11-24 00:07:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-24 00:07:07,783 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:07:07,784 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:07,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:07:07,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:07,984 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:07:07,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:07,985 INFO L85 PathProgramCache]: Analyzing trace with hash 500067233, now seen corresponding path program 1 times [2024-11-24 00:07:07,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:07,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139323424] [2024-11-24 00:07:07,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:07,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:14,468 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 00:07:14,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:14,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139323424] [2024-11-24 00:07:14,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139323424] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:07:14,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662184625] [2024-11-24 00:07:14,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:14,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:14,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:07:14,471 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:07:14,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:07:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:21,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 3319 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:07:21,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:07:21,969 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 00:07:21,969 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:07:21,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662184625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:07:21,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:07:21,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-24 00:07:21,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742100341] [2024-11-24 00:07:21,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:07:21,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:07:21,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:21,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:07:21,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:07:21,972 INFO L87 Difference]: Start difference. First operand 40884 states and 58457 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:07:24,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:07:24,577 INFO L93 Difference]: Finished difference Result 95447 states and 136505 transitions. [2024-11-24 00:07:24,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:07:24,577 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 137 [2024-11-24 00:07:24,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:07:24,951 INFO L225 Difference]: With dead ends: 95447 [2024-11-24 00:07:24,951 INFO L226 Difference]: Without dead ends: 54584 [2024-11-24 00:07:25,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:07:25,147 INFO L435 NwaCegarLoop]: 3957 mSDtfsCounter, 2502 mSDsluCounter, 18264 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2506 SdHoareTripleChecker+Valid, 22221 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:07:25,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2506 Valid, 22221 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:07:25,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54584 states. [2024-11-24 00:07:27,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54584 to 54414. [2024-11-24 00:07:27,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54414 states, 40454 states have (on average 1.3333662925792258) internal successors, (53940), 41335 states have internal predecessors, (53940), 11303 states have call successors, (11303), 2629 states have call predecessors, (11303), 2656 states have return successors, (12644), 11190 states have call predecessors, (12644), 11302 states have call successors, (12644) [2024-11-24 00:07:28,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54414 states to 54414 states and 77887 transitions. [2024-11-24 00:07:28,133 INFO L78 Accepts]: Start accepts. Automaton has 54414 states and 77887 transitions. Word has length 137 [2024-11-24 00:07:28,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:07:28,134 INFO L471 AbstractCegarLoop]: Abstraction has 54414 states and 77887 transitions. [2024-11-24 00:07:28,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:07:28,134 INFO L276 IsEmpty]: Start isEmpty. Operand 54414 states and 77887 transitions. [2024-11-24 00:07:28,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-24 00:07:28,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:07:28,150 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:28,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 00:07:28,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:28,355 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:07:28,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:28,356 INFO L85 PathProgramCache]: Analyzing trace with hash -554552084, now seen corresponding path program 1 times [2024-11-24 00:07:28,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:28,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787886257] [2024-11-24 00:07:28,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:28,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:36,792 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 00:07:36,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:36,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787886257] [2024-11-24 00:07:36,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787886257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:07:36,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570028527] [2024-11-24 00:07:36,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:36,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:36,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:07:36,795 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:07:36,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:07:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:44,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 3321 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:07:44,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:07:45,367 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 00:07:45,367 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:07:45,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570028527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:07:45,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:07:45,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-24 00:07:45,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254941978] [2024-11-24 00:07:45,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:07:45,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:07:45,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:45,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:07:45,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:07:45,370 INFO L87 Difference]: Start difference. First operand 54414 states and 77887 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:07:48,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:07:48,607 INFO L93 Difference]: Finished difference Result 122496 states and 175347 transitions. [2024-11-24 00:07:48,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:07:48,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 138 [2024-11-24 00:07:48,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:07:49,166 INFO L225 Difference]: With dead ends: 122496 [2024-11-24 00:07:49,166 INFO L226 Difference]: Without dead ends: 68103 [2024-11-24 00:07:49,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:07:49,469 INFO L435 NwaCegarLoop]: 3958 mSDtfsCounter, 2501 mSDsluCounter, 18268 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2505 SdHoareTripleChecker+Valid, 22226 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:07:49,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2505 Valid, 22226 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:07:49,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68103 states. [2024-11-24 00:07:52,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68103 to 54436. [2024-11-24 00:07:52,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54436 states, 40470 states have (on average 1.3332344946874228) internal successors, (53956), 41353 states have internal predecessors, (53956), 11303 states have call successors, (11303), 2629 states have call predecessors, (11303), 2662 states have return successors, (12653), 11194 states have call predecessors, (12653), 11302 states have call successors, (12653) [2024-11-24 00:07:53,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54436 states to 54436 states and 77912 transitions. [2024-11-24 00:07:53,239 INFO L78 Accepts]: Start accepts. Automaton has 54436 states and 77912 transitions. Word has length 138 [2024-11-24 00:07:53,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:07:53,240 INFO L471 AbstractCegarLoop]: Abstraction has 54436 states and 77912 transitions. [2024-11-24 00:07:53,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:07:53,240 INFO L276 IsEmpty]: Start isEmpty. Operand 54436 states and 77912 transitions. [2024-11-24 00:07:53,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-24 00:07:53,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:07:53,252 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:53,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 00:07:53,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:53,454 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:07:53,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:53,455 INFO L85 PathProgramCache]: Analyzing trace with hash 982874888, now seen corresponding path program 1 times [2024-11-24 00:07:53,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:53,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063699002] [2024-11-24 00:07:53,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:53,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 00:08:00,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:00,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063699002] [2024-11-24 00:08:00,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063699002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:08:00,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409588111] [2024-11-24 00:08:00,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:00,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:08:00,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:08:00,772 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:08:00,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:08:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:10,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 3323 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:08:10,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:11,038 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 00:08:11,038 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:08:11,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409588111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:11,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:08:11,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-24 00:08:11,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585575451] [2024-11-24 00:08:11,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:11,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:08:11,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:11,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:08:11,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:08:11,040 INFO L87 Difference]: Start difference. First operand 54436 states and 77912 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:08:13,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:13,962 INFO L93 Difference]: Finished difference Result 122526 states and 175380 transitions. [2024-11-24 00:08:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:08:13,963 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 139 [2024-11-24 00:08:13,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:14,498 INFO L225 Difference]: With dead ends: 122526 [2024-11-24 00:08:14,498 INFO L226 Difference]: Without dead ends: 68111 [2024-11-24 00:08:14,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:08:14,786 INFO L435 NwaCegarLoop]: 3959 mSDtfsCounter, 2500 mSDsluCounter, 18272 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2504 SdHoareTripleChecker+Valid, 22231 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:14,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2504 Valid, 22231 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:08:14,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68111 states. [2024-11-24 00:08:17,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68111 to 54449. [2024-11-24 00:08:17,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54449 states, 40480 states have (on average 1.3331521739130434) internal successors, (53966), 41362 states have internal predecessors, (53966), 11303 states have call successors, (11303), 2629 states have call predecessors, (11303), 2665 states have return successors, (12656), 11198 states have call predecessors, (12656), 11302 states have call successors, (12656) [2024-11-24 00:08:17,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54449 states to 54449 states and 77925 transitions. [2024-11-24 00:08:17,634 INFO L78 Accepts]: Start accepts. Automaton has 54449 states and 77925 transitions. Word has length 139 [2024-11-24 00:08:17,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:17,636 INFO L471 AbstractCegarLoop]: Abstraction has 54449 states and 77925 transitions. [2024-11-24 00:08:17,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:08:17,637 INFO L276 IsEmpty]: Start isEmpty. Operand 54449 states and 77925 transitions. [2024-11-24 00:08:17,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 00:08:17,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:17,649 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:08:17,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 00:08:17,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:08:17,851 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:17,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:17,852 INFO L85 PathProgramCache]: Analyzing trace with hash 780509896, now seen corresponding path program 1 times [2024-11-24 00:08:17,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:17,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144168285] [2024-11-24 00:08:17,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:17,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:25,794 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-24 00:08:25,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:25,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144168285] [2024-11-24 00:08:25,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144168285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:08:25,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277163784] [2024-11-24 00:08:25,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:25,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:08:25,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:08:25,798 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:08:25,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 00:08:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:34,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 3434 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 00:08:34,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:36,001 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-24 00:08:36,001 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:08:38,998 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-24 00:08:38,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277163784] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:08:38,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:08:38,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-11-24 00:08:38,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172510300] [2024-11-24 00:08:38,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:08:39,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:08:39,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:39,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:08:39,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:08:39,004 INFO L87 Difference]: Start difference. First operand 54449 states and 77925 transitions. Second operand has 18 states, 18 states have (on average 6.611111111111111) internal successors, (119), 14 states have internal predecessors, (119), 5 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-24 00:08:43,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:08:47,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:08:51,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:08:56,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:10:34,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:34,601 INFO L93 Difference]: Finished difference Result 143082 states and 205030 transitions. [2024-11-24 00:10:34,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-24 00:10:34,602 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.611111111111111) internal successors, (119), 14 states have internal predecessors, (119), 5 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) Word has length 152 [2024-11-24 00:10:34,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:35,099 INFO L225 Difference]: With dead ends: 143082 [2024-11-24 00:10:35,099 INFO L226 Difference]: Without dead ends: 88626 [2024-11-24 00:10:35,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 294 SyntacticMatches, 8 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1751 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=747, Invalid=5105, Unknown=0, NotChecked=0, Total=5852 [2024-11-24 00:10:35,286 INFO L435 NwaCegarLoop]: 6273 mSDtfsCounter, 14776 mSDsluCounter, 67050 mSDsCounter, 0 mSdLazyCounter, 8755 mSolverCounterSat, 2552 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14797 SdHoareTripleChecker+Valid, 73323 SdHoareTripleChecker+Invalid, 11311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2552 IncrementalHoareTripleChecker+Valid, 8755 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:35,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14797 Valid, 73323 Invalid, 11311 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2552 Valid, 8755 Invalid, 4 Unknown, 0 Unchecked, 101.0s Time] [2024-11-24 00:10:35,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88626 states. [2024-11-24 00:10:38,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88626 to 88234. [2024-11-24 00:10:38,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88234 states, 65571 states have (on average 1.332860563358802) internal successors, (87397), 67030 states have internal predecessors, (87397), 18342 states have call successors, (18342), 4251 states have call predecessors, (18342), 4320 states have return successors, (20722), 18162 states have call predecessors, (20722), 18341 states have call successors, (20722) [2024-11-24 00:10:39,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88234 states to 88234 states and 126461 transitions. [2024-11-24 00:10:39,212 INFO L78 Accepts]: Start accepts. Automaton has 88234 states and 126461 transitions. Word has length 152 [2024-11-24 00:10:39,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:39,213 INFO L471 AbstractCegarLoop]: Abstraction has 88234 states and 126461 transitions. [2024-11-24 00:10:39,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.611111111111111) internal successors, (119), 14 states have internal predecessors, (119), 5 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-24 00:10:39,213 INFO L276 IsEmpty]: Start isEmpty. Operand 88234 states and 126461 transitions. [2024-11-24 00:10:39,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 00:10:39,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:39,236 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:10:39,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 00:10:39,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-24 00:10:39,438 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:39,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:39,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1072871965, now seen corresponding path program 1 times [2024-11-24 00:10:39,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:39,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728294438] [2024-11-24 00:10:39,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:39,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:48,106 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-24 00:10:48,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:48,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728294438] [2024-11-24 00:10:48,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728294438] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:48,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676902513] [2024-11-24 00:10:48,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:48,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:48,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:48,109 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:10:48,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 00:10:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:56,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 3436 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 00:10:56,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:58,897 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-24 00:10:58,897 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-24 00:11:02,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676902513] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:11:02,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:11:02,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-11-24 00:11:02,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891618421] [2024-11-24 00:11:02,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:11:02,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:11:02,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:02,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:11:02,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:11:02,942 INFO L87 Difference]: Start difference. First operand 88234 states and 126461 transitions. Second operand has 18 states, 18 states have (on average 6.722222222222222) internal successors, (121), 14 states have internal predecessors, (121), 5 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-24 00:11:06,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:11:11,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:11:15,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:11:19,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:12:47,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:47,937 INFO L93 Difference]: Finished difference Result 210356 states and 301594 transitions. [2024-11-24 00:12:47,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-24 00:12:47,938 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.722222222222222) internal successors, (121), 14 states have internal predecessors, (121), 5 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) Word has length 153 [2024-11-24 00:12:47,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:48,607 INFO L225 Difference]: With dead ends: 210356 [2024-11-24 00:12:48,607 INFO L226 Difference]: Without dead ends: 122115 [2024-11-24 00:12:48,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 296 SyntacticMatches, 8 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1782 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=747, Invalid=5105, Unknown=0, NotChecked=0, Total=5852 [2024-11-24 00:12:48,904 INFO L435 NwaCegarLoop]: 4586 mSDtfsCounter, 18707 mSDsluCounter, 45292 mSDsCounter, 0 mSdLazyCounter, 6450 mSolverCounterSat, 3968 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18728 SdHoareTripleChecker+Valid, 49878 SdHoareTripleChecker+Invalid, 10422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3968 IncrementalHoareTripleChecker+Valid, 6450 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:48,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18728 Valid, 49878 Invalid, 10422 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3968 Valid, 6450 Invalid, 4 Unknown, 0 Unchecked, 88.8s Time] [2024-11-24 00:12:48,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122115 states. [2024-11-24 00:12:53,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122115 to 94699. [2024-11-24 00:12:53,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94699 states, 70364 states have (on average 1.3325848445227673) internal successors, (93766), 71925 states have internal predecessors, (93766), 19694 states have call successors, (19694), 4568 states have call predecessors, (19694), 4640 states have return successors, (22178), 19502 states have call predecessors, (22178), 19693 states have call successors, (22178) [2024-11-24 00:12:54,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94699 states to 94699 states and 135638 transitions. [2024-11-24 00:12:54,377 INFO L78 Accepts]: Start accepts. Automaton has 94699 states and 135638 transitions. Word has length 153 [2024-11-24 00:12:54,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:54,378 INFO L471 AbstractCegarLoop]: Abstraction has 94699 states and 135638 transitions. [2024-11-24 00:12:54,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.722222222222222) internal successors, (121), 14 states have internal predecessors, (121), 5 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-24 00:12:54,378 INFO L276 IsEmpty]: Start isEmpty. Operand 94699 states and 135638 transitions. [2024-11-24 00:12:54,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-24 00:12:54,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:54,395 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:12:54,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 00:12:54,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:54,596 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:54,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:54,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1485764737, now seen corresponding path program 1 times [2024-11-24 00:12:54,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:54,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362742059] [2024-11-24 00:12:54,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:54,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:13:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-24 00:13:04,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:13:04,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362742059] [2024-11-24 00:13:04,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362742059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:13:04,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543735091] [2024-11-24 00:13:04,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:04,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:13:04,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:13:04,287 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:13:04,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 00:13:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:14,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 3438 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 00:13:14,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:16,949 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-24 00:13:16,949 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:13:21,462 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-24 00:13:21,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543735091] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:13:21,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:13:21,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-11-24 00:13:21,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581764107] [2024-11-24 00:13:21,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:13:21,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:13:21,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:13:21,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:13:21,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:13:21,465 INFO L87 Difference]: Start difference. First operand 94699 states and 135638 transitions. Second operand has 18 states, 18 states have (on average 6.833333333333333) internal successors, (123), 14 states have internal predecessors, (123), 5 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-24 00:13:25,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:29,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:34,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:38,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:15:18,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:15:18,753 INFO L93 Difference]: Finished difference Result 209789 states and 300538 transitions. [2024-11-24 00:15:18,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-24 00:15:18,754 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.833333333333333) internal successors, (123), 14 states have internal predecessors, (123), 5 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) Word has length 154 [2024-11-24 00:15:18,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:15:19,687 INFO L225 Difference]: With dead ends: 209789 [2024-11-24 00:15:19,687 INFO L226 Difference]: Without dead ends: 115083 [2024-11-24 00:15:19,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 298 SyntacticMatches, 8 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1781 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=747, Invalid=5105, Unknown=0, NotChecked=0, Total=5852 [2024-11-24 00:15:19,942 INFO L435 NwaCegarLoop]: 4477 mSDtfsCounter, 17301 mSDsluCounter, 46363 mSDsCounter, 0 mSdLazyCounter, 6858 mSolverCounterSat, 3531 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17322 SdHoareTripleChecker+Valid, 50840 SdHoareTripleChecker+Invalid, 10393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3531 IncrementalHoareTripleChecker+Valid, 6858 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:15:19,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17322 Valid, 50840 Invalid, 10393 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3531 Valid, 6858 Invalid, 4 Unknown, 0 Unchecked, 100.3s Time] [2024-11-24 00:15:20,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115083 states. [2024-11-24 00:15:23,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115083 to 87653. [2024-11-24 00:15:23,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87653 states, 65114 states have (on average 1.3322019842123045) internal successors, (86745), 66543 states have internal predecessors, (86745), 18246 states have call successors, (18246), 4232 states have call predecessors, (18246), 4292 states have return successors, (20404), 18078 states have call predecessors, (20404), 18245 states have call successors, (20404) [2024-11-24 00:15:24,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87653 states to 87653 states and 125395 transitions. [2024-11-24 00:15:24,594 INFO L78 Accepts]: Start accepts. Automaton has 87653 states and 125395 transitions. Word has length 154 [2024-11-24 00:15:24,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:15:24,595 INFO L471 AbstractCegarLoop]: Abstraction has 87653 states and 125395 transitions. [2024-11-24 00:15:24,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.833333333333333) internal successors, (123), 14 states have internal predecessors, (123), 5 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-24 00:15:24,595 INFO L276 IsEmpty]: Start isEmpty. Operand 87653 states and 125395 transitions. [2024-11-24 00:15:24,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-24 00:15:24,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:15:24,613 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:15:24,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-24 00:15:24,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7604c600-da28-4d49-9e1d-c14e534957a7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-24 00:15:24,814 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:15:24,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:15:24,818 INFO L85 PathProgramCache]: Analyzing trace with hash -576309964, now seen corresponding path program 1 times [2024-11-24 00:15:24,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:15:24,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062133750] [2024-11-24 00:15:24,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:15:24,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:15:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:15:31,934 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-24 00:15:31,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:15:31,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062133750] [2024-11-24 00:15:31,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062133750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:15:31,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:15:31,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:15:31,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283679325] [2024-11-24 00:15:31,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:15:31,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:15:31,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:15:31,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:15:31,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:15:31,936 INFO L87 Difference]: Start difference. First operand 87653 states and 125395 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-24 00:15:37,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:15:37,571 INFO L93 Difference]: Finished difference Result 243222 states and 345726 transitions. [2024-11-24 00:15:37,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:15:37,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 163 [2024-11-24 00:15:37,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:15:39,211 INFO L225 Difference]: With dead ends: 243222 [2024-11-24 00:15:39,212 INFO L226 Difference]: Without dead ends: 155590 [2024-11-24 00:15:39,586 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 00:15:39,586 INFO L435 NwaCegarLoop]: 2657 mSDtfsCounter, 1968 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 5019 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:15:39,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1968 Valid, 5019 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:15:39,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155590 states. [2024-11-24 00:15:46,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155590 to 155379. [2024-11-24 00:15:46,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155379 states, 116111 states have (on average 1.3332156298714162) internal successors, (154801), 118522 states have internal predecessors, (154801), 31521 states have call successors, (31521), 7633 states have call predecessors, (31521), 7746 states have return successors, (33774), 31186 states have call predecessors, (33774), 31520 states have call successors, (33774) [2024-11-24 00:15:48,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155379 states to 155379 states and 220096 transitions. [2024-11-24 00:15:48,466 INFO L78 Accepts]: Start accepts. Automaton has 155379 states and 220096 transitions. Word has length 163 [2024-11-24 00:15:48,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:15:48,466 INFO L471 AbstractCegarLoop]: Abstraction has 155379 states and 220096 transitions. [2024-11-24 00:15:48,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-24 00:15:48,467 INFO L276 IsEmpty]: Start isEmpty. Operand 155379 states and 220096 transitions. [2024-11-24 00:15:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-24 00:15:48,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:15:48,474 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:15:48,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:15:48,475 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:15:48,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:15:48,476 INFO L85 PathProgramCache]: Analyzing trace with hash 397138312, now seen corresponding path program 1 times [2024-11-24 00:15:48,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:15:48,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627009069] [2024-11-24 00:15:48,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:15:48,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:15:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:15:58,093 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-24 00:15:58,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:15:58,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627009069] [2024-11-24 00:15:58,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627009069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:15:58,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:15:58,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:15:58,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668703068] [2024-11-24 00:15:58,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:15:58,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:15:58,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:15:58,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:15:58,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:15:58,096 INFO L87 Difference]: Start difference. First operand 155379 states and 220096 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:16:07,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:07,850 INFO L93 Difference]: Finished difference Result 349561 states and 493985 transitions. [2024-11-24 00:16:07,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:16:07,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2024-11-24 00:16:07,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:09,492 INFO L225 Difference]: With dead ends: 349561 [2024-11-24 00:16:09,492 INFO L226 Difference]: Without dead ends: 194203 [2024-11-24 00:16:10,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:16:10,016 INFO L435 NwaCegarLoop]: 2605 mSDtfsCounter, 1777 mSDsluCounter, 3895 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 6500 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:10,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1777 Valid, 6500 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:16:10,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194203 states. [2024-11-24 00:16:20,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194203 to 194203. [2024-11-24 00:16:20,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194203 states, 144401 states have (on average 1.320039334907653) internal successors, (190615), 146947 states have internal predecessors, (190615), 38980 states have call successors, (38980), 10708 states have call predecessors, (38980), 10821 states have return successors, (41233), 38645 states have call predecessors, (41233), 38979 states have call successors, (41233) [2024-11-24 00:16:22,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194203 states to 194203 states and 270828 transitions. [2024-11-24 00:16:22,886 INFO L78 Accepts]: Start accepts. Automaton has 194203 states and 270828 transitions. Word has length 163 [2024-11-24 00:16:22,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:22,888 INFO L471 AbstractCegarLoop]: Abstraction has 194203 states and 270828 transitions. [2024-11-24 00:16:22,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:16:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 194203 states and 270828 transitions. [2024-11-24 00:16:23,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2024-11-24 00:16:23,032 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:23,032 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:23,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:16:23,032 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:23,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:23,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1909984619, now seen corresponding path program 1 times [2024-11-24 00:16:23,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:23,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659710772] [2024-11-24 00:16:23,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:23,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:31,217 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-24 00:16:31,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:31,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659710772] [2024-11-24 00:16:31,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659710772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:31,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:31,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:16:31,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87147963] [2024-11-24 00:16:31,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:31,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:16:31,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:31,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:16:31,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:16:31,223 INFO L87 Difference]: Start difference. First operand 194203 states and 270828 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-24 00:16:45,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:45,938 INFO L93 Difference]: Finished difference Result 547269 states and 764392 transitions. [2024-11-24 00:16:45,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:16:45,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 370 [2024-11-24 00:16:45,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:49,611 INFO L225 Difference]: With dead ends: 547269 [2024-11-24 00:16:49,611 INFO L226 Difference]: Without dead ends: 353087 [2024-11-24 00:16:50,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:16:50,498 INFO L435 NwaCegarLoop]: 3765 mSDtfsCounter, 2008 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2008 SdHoareTripleChecker+Valid, 6210 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:50,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2008 Valid, 6210 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:16:50,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353087 states. [2024-11-24 00:17:10,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353087 to 352980. [2024-11-24 00:17:10,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352980 states, 262429 states have (on average 1.3250517282769816) internal successors, (347732), 266845 states have internal predecessors, (347732), 70571 states have call successors, (70571), 19752 states have call predecessors, (70571), 19979 states have return successors, (75078), 70058 states have call predecessors, (75078), 70570 states have call successors, (75078) [2024-11-24 00:17:13,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352980 states to 352980 states and 493381 transitions. [2024-11-24 00:17:13,324 INFO L78 Accepts]: Start accepts. Automaton has 352980 states and 493381 transitions. Word has length 370 [2024-11-24 00:17:13,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:17:13,325 INFO L471 AbstractCegarLoop]: Abstraction has 352980 states and 493381 transitions. [2024-11-24 00:17:13,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-24 00:17:13,325 INFO L276 IsEmpty]: Start isEmpty. Operand 352980 states and 493381 transitions. [2024-11-24 00:17:13,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-24 00:17:13,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:17:13,422 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:13,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:17:13,422 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:17:13,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:17:13,423 INFO L85 PathProgramCache]: Analyzing trace with hash -540413315, now seen corresponding path program 1 times [2024-11-24 00:17:13,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:17:13,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767374620] [2024-11-24 00:17:13,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:13,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:17:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:19,944 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-24 00:17:19,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:17:19,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767374620] [2024-11-24 00:17:19,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767374620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:17:19,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:17:19,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:17:19,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412277320] [2024-11-24 00:17:19,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:17:19,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:17:19,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:17:19,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:17:19,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:17:19,948 INFO L87 Difference]: Start difference. First operand 352980 states and 493381 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41)