./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:19:55,159 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:19:55,265 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 05:19:55,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:19:55,271 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:19:55,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:19:55,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:19:55,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:19:55,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:19:55,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:19:55,314 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:19:55,314 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:19:55,314 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:19:55,315 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:19:55,315 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:19:55,315 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:19:55,315 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:19:55,315 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:19:55,315 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:19:55,315 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:19:55,315 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:19:55,316 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:19:55,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:19:55,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:19:55,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:19:55,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:19:55,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:19:55,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:19:55,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:19:55,319 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:19:55,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:19:55,320 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:19:55,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:19:55,320 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:19:55,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:19:55,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:19:55,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:19:55,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:19:55,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:19:55,322 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:19:55,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:19:55,322 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:19:55,322 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:19:55,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:19:55,323 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2024-11-14 05:19:55,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:19:55,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:19:55,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:19:55,695 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:19:55,695 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:19:55,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i Unable to find full path for "g++" [2024-11-14 05:19:57,738 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:19:58,442 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:19:58,442 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2024-11-14 05:19:58,509 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E/data/f6ce67d00/06b6316428ae4fde9c24379fd1c360b4/FLAG0b4342ddc [2024-11-14 05:19:58,533 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E/data/f6ce67d00/06b6316428ae4fde9c24379fd1c360b4 [2024-11-14 05:19:58,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:19:58,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:19:58,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:19:58,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:19:58,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:19:58,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:19:58" (1/1) ... [2024-11-14 05:19:58,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620061a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:58, skipping insertion in model container [2024-11-14 05:19:58,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:19:58" (1/1) ... [2024-11-14 05:19:58,749 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:20:01,599 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_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2024-11-14 05:20:01,603 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_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2024-11-14 05:20:01,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:20:01,685 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:20:01,829 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"); [5255] [2024-11-14 05:20:01,831 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)); [5262] [2024-11-14 05:20:01,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5269] [2024-11-14 05:20:01,836 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 *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5306-5307] [2024-11-14 05:20:01,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5312-5314] [2024-11-14 05:20:01,884 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)); [5455-5456] [2024-11-14 05:20:01,893 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)); [5489-5490] [2024-11-14 05:20:02,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7251] [2024-11-14 05:20:02,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7503] [2024-11-14 05:20:02,361 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_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2024-11-14 05:20:02,361 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_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2024-11-14 05:20:02,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:20:02,580 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:20:02,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:20:02 WrapperNode [2024-11-14 05:20:02,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:20:02,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:20:02,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:20:02,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:20:02,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:20:02" (1/1) ... [2024-11-14 05:20:02,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:20:02" (1/1) ... [2024-11-14 05:20:02,940 INFO L138 Inliner]: procedures = 410, calls = 1792, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 4907 [2024-11-14 05:20:02,941 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:20:02,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:20:02,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:20:02,942 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:20:02,951 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:20:02" (1/1) ... [2024-11-14 05:20:02,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:20:02" (1/1) ... [2024-11-14 05:20:02,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:20:02" (1/1) ... [2024-11-14 05:20:02,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:20:02" (1/1) ... [2024-11-14 05:20:03,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:20:02" (1/1) ... [2024-11-14 05:20:03,263 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:20:02" (1/1) ... [2024-11-14 05:20:03,284 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:20:02" (1/1) ... [2024-11-14 05:20:03,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:20:02" (1/1) ... [2024-11-14 05:20:03,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:20:03,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:20:03,364 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:20:03,364 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:20:03,365 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:20:02" (1/1) ... [2024-11-14 05:20:03,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:20:03,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:20:03,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:20:03,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6f9a95-d2d0-4671-8a3a-7d7808e38181/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:20:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2024-11-14 05:20:03,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2024-11-14 05:20:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-14 05:20:03,450 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-14 05:20:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-14 05:20:03,451 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-14 05:20:03,451 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2024-11-14 05:20:03,451 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2024-11-14 05:20:03,451 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-14 05:20:03,452 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-14 05:20:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 05:20:03,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 05:20:03,453 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-11-14 05:20:03,453 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-11-14 05:20:03,453 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2024-11-14 05:20:03,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2024-11-14 05:20:03,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2024-11-14 05:20:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2024-11-14 05:20:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-14 05:20:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-14 05:20:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2024-11-14 05:20:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2024-11-14 05:20:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2024-11-14 05:20:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2024-11-14 05:20:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2024-11-14 05:20:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2024-11-14 05:20:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-14 05:20:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-14 05:20:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-11-14 05:20:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-11-14 05:20:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-11-14 05:20:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-11-14 05:20:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-14 05:20:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-14 05:20:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-14 05:20:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-14 05:20:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2024-11-14 05:20:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2024-11-14 05:20:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:20:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2024-11-14 05:20:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2024-11-14 05:20:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-14 05:20:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-14 05:20:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-14 05:20:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-14 05:20:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-14 05:20:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-14 05:20:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-14 05:20:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 05:20:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-14 05:20:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-14 05:20:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2024-11-14 05:20:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2024-11-14 05:20:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2024-11-14 05:20:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2024-11-14 05:20:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:20:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2024-11-14 05:20:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2024-11-14 05:20:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-11-14 05:20:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-11-14 05:20:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-14 05:20:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-14 05:20:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-11-14 05:20:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-11-14 05:20:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-14 05:20:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-14 05:20:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-14 05:20:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-14 05:20:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-14 05:20:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-14 05:20:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-11-14 05:20:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-11-14 05:20:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-14 05:20:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-14 05:20:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2024-11-14 05:20:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2024-11-14 05:20:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2024-11-14 05:20:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2024-11-14 05:20:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:20:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-14 05:20:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-14 05:20:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-14 05:20:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-14 05:20:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:20:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2024-11-14 05:20:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2024-11-14 05:20:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-14 05:20:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-14 05:20:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-14 05:20:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-14 05:20:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:20:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 05:20:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 05:20:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2024-11-14 05:20:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2024-11-14 05:20:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2024-11-14 05:20:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2024-11-14 05:20:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-14 05:20:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-14 05:20:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-14 05:20:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-14 05:20:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-14 05:20:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-14 05:20:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-14 05:20:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-14 05:20:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2024-11-14 05:20:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2024-11-14 05:20:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:20:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:20:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2024-11-14 05:20:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2024-11-14 05:20:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2024-11-14 05:20:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2024-11-14 05:20:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-14 05:20:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 05:20:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-14 05:20:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-14 05:20:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2024-11-14 05:20:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2024-11-14 05:20:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2024-11-14 05:20:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2024-11-14 05:20:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-11-14 05:20:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-11-14 05:20:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-11-14 05:20:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-11-14 05:20:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2024-11-14 05:20:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2024-11-14 05:20:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-14 05:20:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-14 05:20:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2024-11-14 05:20:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2024-11-14 05:20:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2024-11-14 05:20:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2024-11-14 05:20:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2024-11-14 05:20:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2024-11-14 05:20:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-14 05:20:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-14 05:20:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:20:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-14 05:20:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-14 05:20:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:20:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-14 05:20:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-14 05:20:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-14 05:20:03,472 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-14 05:20:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-14 05:20:03,472 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-14 05:20:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-14 05:20:03,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-14 05:20:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2024-11-14 05:20:03,472 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2024-11-14 05:20:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-14 05:20:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-14 05:20:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2024-11-14 05:20:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2024-11-14 05:20:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2024-11-14 05:20:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2024-11-14 05:20:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2024-11-14 05:20:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2024-11-14 05:20:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2024-11-14 05:20:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2024-11-14 05:20:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:20:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-14 05:20:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-14 05:20:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2024-11-14 05:20:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2024-11-14 05:20:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2024-11-14 05:20:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2024-11-14 05:20:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-14 05:20:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-14 05:20:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-11-14 05:20:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-11-14 05:20:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2024-11-14 05:20:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2024-11-14 05:20:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2024-11-14 05:20:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2024-11-14 05:20:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:20:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-14 05:20:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-14 05:20:04,488 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:20:04,494 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:20:05,183 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-14 05:20:15,721 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-14 05:20:17,091 INFO L? ?]: Removed 2064 outVars from TransFormulas that were not future-live. [2024-11-14 05:20:17,091 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:20:19,945 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:20:19,946 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:20:19,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:20:19 BoogieIcfgContainer [2024-11-14 05:20:19,947 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:20:19,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:20:19,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:20:19,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:20:19,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:19:58" (1/3) ... [2024-11-14 05:20:19,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce9bed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:20:19, skipping insertion in model container [2024-11-14 05:20:19,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:20:02" (2/3) ... [2024-11-14 05:20:19,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce9bed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:20:19, skipping insertion in model container [2024-11-14 05:20:19,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:20:19" (3/3) ... [2024-11-14 05:20:19,960 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2024-11-14 05:20:19,981 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:20:19,985 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i that has 83 procedures, 1220 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-14 05:20:20,129 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:20:20,148 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=FINITE_AUTOMATA, 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;@70d2351b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:20:20,152 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:20:20,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 1218 states, 705 states have (on average 1.2836879432624113) internal successors, (905), 724 states have internal predecessors, (905), 431 states have call successors, (431), 82 states have call predecessors, (431), 81 states have return successors, (425), 419 states have call predecessors, (425), 425 states have call successors, (425) [2024-11-14 05:20:20,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-14 05:20:20,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:20:20,235 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 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] [2024-11-14 05:20:20,235 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:20:20,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:20:20,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1673119993, now seen corresponding path program 1 times [2024-11-14 05:20:20,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:20:20,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887418424] [2024-11-14 05:20:20,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:20,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:20:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:30,109 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2024-11-14 05:20:30,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:20:30,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887418424] [2024-11-14 05:20:30,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887418424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:20:30,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:20:30,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:20:30,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905110054] [2024-11-14 05:20:30,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:20:30,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:20:30,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:20:30,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:20:30,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:20:30,160 INFO L87 Difference]: Start difference. First operand has 1218 states, 705 states have (on average 1.2836879432624113) internal successors, (905), 724 states have internal predecessors, (905), 431 states have call successors, (431), 82 states have call predecessors, (431), 81 states have return successors, (425), 419 states have call predecessors, (425), 425 states have call successors, (425) Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 05:20:32,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:20:34,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:20:39,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:20:39,914 INFO L93 Difference]: Finished difference Result 3569 states and 5205 transitions. [2024-11-14 05:20:39,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:20:39,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 161 [2024-11-14 05:20:39,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:20:39,958 INFO L225 Difference]: With dead ends: 3569 [2024-11-14 05:20:39,958 INFO L226 Difference]: Without dead ends: 2271 [2024-11-14 05:20:39,974 INFO L431 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 [2024-11-14 05:20:39,978 INFO L432 NwaCegarLoop]: 1524 mSDtfsCounter, 1704 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:20:39,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 2994 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2024-11-14 05:20:40,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2024-11-14 05:20:40,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 2267. [2024-11-14 05:20:40,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2267 states, 1330 states have (on average 1.2849624060150375) internal successors, (1709), 1369 states have internal predecessors, (1709), 780 states have call successors, (780), 158 states have call predecessors, (780), 156 states have return successors, (783), 763 states have call predecessors, (783), 780 states have call successors, (783) [2024-11-14 05:20:40,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 3272 transitions. [2024-11-14 05:20:40,387 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 3272 transitions. Word has length 161 [2024-11-14 05:20:40,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:20:40,390 INFO L471 AbstractCegarLoop]: Abstraction has 2267 states and 3272 transitions. [2024-11-14 05:20:40,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 05:20:40,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 3272 transitions. [2024-11-14 05:20:40,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-14 05:20:40,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:20:40,409 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 3, 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] [2024-11-14 05:20:40,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:20:40,410 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:20:40,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:20:40,410 INFO L85 PathProgramCache]: Analyzing trace with hash 677416978, now seen corresponding path program 1 times [2024-11-14 05:20:40,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:20:40,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322453509] [2024-11-14 05:20:40,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:40,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:20:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:46,948 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-14 05:20:46,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:20:46,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322453509] [2024-11-14 05:20:46,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322453509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:20:46,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:20:46,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:20:46,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944083774] [2024-11-14 05:20:46,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:20:46,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:20:46,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:20:46,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:20:46,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:20:46,957 INFO L87 Difference]: Start difference. First operand 2267 states and 3272 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 05:20:49,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:20:51,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:20:57,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:20:57,481 INFO L93 Difference]: Finished difference Result 6551 states and 9433 transitions. [2024-11-14 05:20:57,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:20:57,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 171 [2024-11-14 05:20:57,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:20:57,527 INFO L225 Difference]: With dead ends: 6551 [2024-11-14 05:20:57,527 INFO L226 Difference]: Without dead ends: 4303 [2024-11-14 05:20:57,542 INFO L431 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 [2024-11-14 05:20:57,544 INFO L432 NwaCegarLoop]: 1437 mSDtfsCounter, 1479 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 2820 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:20:57,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 2820 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 520 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2024-11-14 05:20:57,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4303 states. [2024-11-14 05:20:57,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4303 to 4298. [2024-11-14 05:20:57,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4298 states, 2512 states have (on average 1.2770700636942676) internal successors, (3208), 2587 states have internal predecessors, (3208), 1480 states have call successors, (1480), 310 states have call predecessors, (1480), 305 states have return successors, (1487), 1442 states have call predecessors, (1487), 1480 states have call successors, (1487) [2024-11-14 05:20:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4298 states to 4298 states and 6175 transitions. [2024-11-14 05:20:57,866 INFO L78 Accepts]: Start accepts. Automaton has 4298 states and 6175 transitions. Word has length 171 [2024-11-14 05:20:57,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:20:57,867 INFO L471 AbstractCegarLoop]: Abstraction has 4298 states and 6175 transitions. [2024-11-14 05:20:57,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 05:20:57,867 INFO L276 IsEmpty]: Start isEmpty. Operand 4298 states and 6175 transitions. [2024-11-14 05:20:57,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-14 05:20:57,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:20:57,879 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 3, 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] [2024-11-14 05:20:57,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:20:57,880 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:20:57,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:20:57,880 INFO L85 PathProgramCache]: Analyzing trace with hash -352499871, now seen corresponding path program 1 times [2024-11-14 05:20:57,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:20:57,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612002682] [2024-11-14 05:20:57,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:57,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:04,524 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-14 05:21:04,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:04,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612002682] [2024-11-14 05:21:04,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612002682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:04,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:04,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:04,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494923982] [2024-11-14 05:21:04,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:04,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:21:04,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:04,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:21:04,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:21:04,528 INFO L87 Difference]: Start difference. First operand 4298 states and 6175 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 05:21:06,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:08,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:15,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:15,360 INFO L93 Difference]: Finished difference Result 11237 states and 16107 transitions. [2024-11-14 05:21:15,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:21:15,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 170 [2024-11-14 05:21:15,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:15,422 INFO L225 Difference]: With dead ends: 11237 [2024-11-14 05:21:15,423 INFO L226 Difference]: Without dead ends: 6958 [2024-11-14 05:21:15,447 INFO L431 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 [2024-11-14 05:21:15,450 INFO L432 NwaCegarLoop]: 1902 mSDtfsCounter, 1082 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:15,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 3298 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 620 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2024-11-14 05:21:15,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6958 states. [2024-11-14 05:21:15,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6958 to 6952. [2024-11-14 05:21:15,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6952 states, 4128 states have (on average 1.2751937984496124) internal successors, (5264), 4237 states have internal predecessors, (5264), 2312 states have call successors, (2312), 516 states have call predecessors, (2312), 511 states have return successors, (2319), 2262 states have call predecessors, (2319), 2312 states have call successors, (2319) [2024-11-14 05:21:15,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6952 states to 6952 states and 9895 transitions. [2024-11-14 05:21:15,958 INFO L78 Accepts]: Start accepts. Automaton has 6952 states and 9895 transitions. Word has length 170 [2024-11-14 05:21:15,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:15,959 INFO L471 AbstractCegarLoop]: Abstraction has 6952 states and 9895 transitions. [2024-11-14 05:21:15,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 05:21:15,959 INFO L276 IsEmpty]: Start isEmpty. Operand 6952 states and 9895 transitions. [2024-11-14 05:21:15,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-14 05:21:15,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:15,972 INFO L215 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:15,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:21:15,972 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:21:15,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:15,973 INFO L85 PathProgramCache]: Analyzing trace with hash -595386438, now seen corresponding path program 1 times [2024-11-14 05:21:15,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:15,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998046409] [2024-11-14 05:21:15,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:15,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:22,727 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-11-14 05:21:22,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:22,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998046409] [2024-11-14 05:21:22,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998046409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:22,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:22,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:22,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667045463] [2024-11-14 05:21:22,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:22,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:21:22,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:22,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:21:22,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:21:22,735 INFO L87 Difference]: Start difference. First operand 6952 states and 9895 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-14 05:21:24,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:28,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:28,052 INFO L93 Difference]: Finished difference Result 13877 states and 19754 transitions. [2024-11-14 05:21:28,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:21:28,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 226 [2024-11-14 05:21:28,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:28,101 INFO L225 Difference]: With dead ends: 13877 [2024-11-14 05:21:28,102 INFO L226 Difference]: Without dead ends: 6944 [2024-11-14 05:21:28,129 INFO L431 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 [2024-11-14 05:21:28,131 INFO L432 NwaCegarLoop]: 1422 mSDtfsCounter, 1634 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:28,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 1422 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 246 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2024-11-14 05:21:28,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6944 states. [2024-11-14 05:21:28,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6944 to 6944. [2024-11-14 05:21:28,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6944 states, 4120 states have (on average 1.2679611650485436) internal successors, (5224), 4229 states have internal predecessors, (5224), 2312 states have call successors, (2312), 516 states have call predecessors, (2312), 511 states have return successors, (2319), 2262 states have call predecessors, (2319), 2312 states have call successors, (2319) [2024-11-14 05:21:28,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6944 states to 6944 states and 9855 transitions. [2024-11-14 05:21:28,595 INFO L78 Accepts]: Start accepts. Automaton has 6944 states and 9855 transitions. Word has length 226 [2024-11-14 05:21:28,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:28,597 INFO L471 AbstractCegarLoop]: Abstraction has 6944 states and 9855 transitions. [2024-11-14 05:21:28,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-14 05:21:28,597 INFO L276 IsEmpty]: Start isEmpty. Operand 6944 states and 9855 transitions. [2024-11-14 05:21:28,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-14 05:21:28,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:28,607 INFO L215 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:28,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:21:28,608 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:21:28,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:28,608 INFO L85 PathProgramCache]: Analyzing trace with hash 857658022, now seen corresponding path program 1 times [2024-11-14 05:21:28,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:28,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854252354] [2024-11-14 05:21:28,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:28,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-11-14 05:21:34,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:34,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854252354] [2024-11-14 05:21:34,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854252354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:34,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:34,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:34,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028345374] [2024-11-14 05:21:34,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:34,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:21:34,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:34,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:21:34,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:21:34,070 INFO L87 Difference]: Start difference. First operand 6944 states and 9855 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-14 05:21:36,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:38,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:44,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:44,723 INFO L93 Difference]: Finished difference Result 16549 states and 23479 transitions. [2024-11-14 05:21:44,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:21:44,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 228 [2024-11-14 05:21:44,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:44,801 INFO L225 Difference]: With dead ends: 16549 [2024-11-14 05:21:44,801 INFO L226 Difference]: Without dead ends: 9624 [2024-11-14 05:21:44,839 INFO L431 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 [2024-11-14 05:21:44,839 INFO L432 NwaCegarLoop]: 2330 mSDtfsCounter, 1087 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 3713 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:44,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 3713 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 695 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2024-11-14 05:21:44,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9624 states. [2024-11-14 05:21:45,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9624 to 9618. [2024-11-14 05:21:45,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9618 states, 5740 states have (on average 1.2662020905923346) internal successors, (7268), 5883 states have internal predecessors, (7268), 3156 states have call successors, (3156), 726 states have call predecessors, (3156), 721 states have return successors, (3163), 3094 states have call predecessors, (3163), 3156 states have call successors, (3163) [2024-11-14 05:21:45,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9618 states to 9618 states and 13587 transitions. [2024-11-14 05:21:45,715 INFO L78 Accepts]: Start accepts. Automaton has 9618 states and 13587 transitions. Word has length 228 [2024-11-14 05:21:45,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:45,720 INFO L471 AbstractCegarLoop]: Abstraction has 9618 states and 13587 transitions. [2024-11-14 05:21:45,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-14 05:21:45,720 INFO L276 IsEmpty]: Start isEmpty. Operand 9618 states and 13587 transitions. [2024-11-14 05:21:45,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-14 05:21:45,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:45,739 INFO L215 NwaCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 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] [2024-11-14 05:21:45,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:21:45,740 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:21:45,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:45,741 INFO L85 PathProgramCache]: Analyzing trace with hash -721287611, now seen corresponding path program 1 times [2024-11-14 05:21:45,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:45,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553088610] [2024-11-14 05:21:45,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:45,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat